diff --git a/src/main/java/org/codelibs/fess/Constants.java b/src/main/java/org/codelibs/fess/Constants.java
index 2328505cb..3f80cd87c 100644
--- a/src/main/java/org/codelibs/fess/Constants.java
+++ b/src/main/java/org/codelibs/fess/Constants.java
@@ -104,6 +104,8 @@ public class Constants extends CoreLibConstants {
 
     public static final String WEB_DESIGN_EDITOR_PROPERTY = "design.editor";
 
+    public static final String APP_VALUE_PROPERTY = "system.properties";
+
     public static final String DEFAULT_LABEL_VALUE_PROPERTY = "label.value";
 
     public static final String DEFAULT_SORT_VALUE_PROPERTY = "sort.value";
diff --git a/src/main/java/org/codelibs/fess/app/web/admin/general/AdminGeneralAction.java b/src/main/java/org/codelibs/fess/app/web/admin/general/AdminGeneralAction.java
index 627dc426a..00b1e4a14 100644
--- a/src/main/java/org/codelibs/fess/app/web/admin/general/AdminGeneralAction.java
+++ b/src/main/java/org/codelibs/fess/app/web/admin/general/AdminGeneralAction.java
@@ -29,6 +29,7 @@ import org.codelibs.core.lang.StringUtil;
 import org.codelibs.core.misc.DynamicProperties;
 import org.codelibs.fess.Constants;
 import org.codelibs.fess.app.web.base.FessAdminAction;
+import org.codelibs.fess.helper.SystemHelper;
 import org.codelibs.fess.mylasta.direction.FessConfig;
 import org.codelibs.fess.mylasta.mail.TestmailPostcard;
 import org.codelibs.fess.util.ComponentUtil;
@@ -136,6 +137,7 @@ public class AdminGeneralAction extends FessAdminAction {
         fessConfig.setUserInfo(isCheckboxEnabled(form.userInfo));
         fessConfig.setUserFavorite(isCheckboxEnabled(form.userFavorite));
         fessConfig.setWebApiJson(isCheckboxEnabled(form.webApiJson));
+        fessConfig.setAppValue(form.appValue);
         fessConfig.setDefaultLabelValue(form.defaultLabelValue);
         fessConfig.setDefaultSortValue(form.defaultSortValue);
         fessConfig.setVirtualHostValue(form.virtualHostValue);
@@ -167,10 +169,12 @@ public class AdminGeneralAction extends FessAdminAction {
 
         fessConfig.storeSystemProperties();
         ComponentUtil.getLdapManager().updateConfig();
-        ComponentUtil.getSystemHelper().refreshDesignJspFiles();
+        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
+        systemHelper.refreshDesignJspFiles();
+        systemHelper.updateSystemProperties();
 
         if (StringUtil.isNotBlank(form.logLevel)) {
-            ComponentUtil.getSystemHelper().setLogLevel(form.logLevel);
+            systemHelper.setLogLevel(form.logLevel);
         }
     }
 
@@ -186,6 +190,7 @@ public class AdminGeneralAction extends FessAdminAction {
         form.userInfo = fessConfig.isUserInfo() ? Constants.TRUE : Constants.FALSE;
         form.userFavorite = fessConfig.isUserFavorite() ? Constants.TRUE : Constants.FALSE;
         form.webApiJson = fessConfig.isWebApiJson() ? Constants.TRUE : Constants.FALSE;
+        form.appValue = fessConfig.getAppValue();
         form.defaultLabelValue = fessConfig.getDefaultLabelValue();
         form.defaultSortValue = fessConfig.getDefaultSortValue();
         form.virtualHostValue = fessConfig.getVirtualHostValue();
diff --git a/src/main/java/org/codelibs/fess/app/web/admin/general/EditForm.java b/src/main/java/org/codelibs/fess/app/web/admin/general/EditForm.java
index 8cf195a6b..e9c15bd38 100644
--- a/src/main/java/org/codelibs/fess/app/web/admin/general/EditForm.java
+++ b/src/main/java/org/codelibs/fess/app/web/admin/general/EditForm.java
@@ -55,6 +55,9 @@ public class EditForm {
     @Size(max = 10)
     public String webApiJson;
 
+    @Size(max = 10000)
+    public String appValue;
+
     @Size(max = 1000)
     public String defaultLabelValue;
 
diff --git a/src/main/java/org/codelibs/fess/helper/SystemHelper.java b/src/main/java/org/codelibs/fess/helper/SystemHelper.java
index b56e595e6..37d299fa9 100644
--- a/src/main/java/org/codelibs/fess/helper/SystemHelper.java
+++ b/src/main/java/org/codelibs/fess/helper/SystemHelper.java
@@ -61,6 +61,7 @@ import org.codelibs.fess.mylasta.action.FessUserBean;
 import org.codelibs.fess.mylasta.direction.FessConfig;
 import org.codelibs.fess.util.ComponentUtil;
 import org.codelibs.fess.util.GsaConfigParser;
+import org.codelibs.fess.util.ParameterUtil;
 import org.codelibs.fess.util.ResourceUtil;
 import org.codelibs.fess.validation.FessActionValidator;
 import org.lastaflute.core.message.supplier.UserMessagesCreator;
@@ -109,6 +110,7 @@ public class SystemHelper {
         if (logger.isDebugEnabled()) {
             logger.debug("Initialize " + this.getClass().getSimpleName());
         }
+        updateSystemProperties();
         final FessConfig fessConfig = ComponentUtil.getFessConfig();
         filterPathEncoding = fessConfig.getPathEncoding();
         supportedLanguages = fessConfig.getSupportedLanguagesAsArray();
@@ -433,6 +435,25 @@ public class SystemHelper {
         ComponentUtil.getRelatedContentHelper().update();
         ComponentUtil.getRelatedQueryHelper().update();
         ComponentUtil.getKeyMatchHelper().update();
+        updateSystemProperties();
+    }
+
+    public void updateSystemProperties() {
+        final String value = ComponentUtil.getFessConfig().getAppValue();
+        if (StringUtil.isNotBlank(value)) {
+            ParameterUtil.parse(value).entrySet().stream().filter(e -> {
+                final String key = e.getKey();
+                if (StringUtil.isNotBlank(key)) {
+                    return false;
+                }
+                if (key.startsWith("fess.")) {
+                    return true;
+                }
+                return System.getProperty(key) == null;
+            }).forEach(e -> {
+                System.setProperty(e.getKey(), e.getValue());
+            });
+        }
     }
 
     public String updateConfiguration() {
diff --git a/src/main/java/org/codelibs/fess/mylasta/action/FessLabels.java b/src/main/java/org/codelibs/fess/mylasta/action/FessLabels.java
index 17989abfb..763522b8e 100644
--- a/src/main/java/org/codelibs/fess/mylasta/action/FessLabels.java
+++ b/src/main/java/org/codelibs/fess/mylasta/action/FessLabels.java
@@ -1169,6 +1169,9 @@ public class FessLabels extends UserMessages {
     /** The key of the message: JSON Response */
     public static final String LABELS_web_api_json_enabled = "{labels.web_api_json_enabled}";
 
+    /** The key of the message: System Properties */
+    public static final String LABELS_app_value = "{labels.app_value}";
+
     /** The key of the message: Default Label Value */
     public static final String LABELS_default_label_value = "{labels.default_label_value}";
 
diff --git a/src/main/java/org/codelibs/fess/mylasta/direction/FessProp.java b/src/main/java/org/codelibs/fess/mylasta/direction/FessProp.java
index 89b903ab3..946321770 100644
--- a/src/main/java/org/codelibs/fess/mylasta/direction/FessProp.java
+++ b/src/main/java/org/codelibs/fess/mylasta/direction/FessProp.java
@@ -139,6 +139,8 @@ public interface FessProp {
 
     String ROLE_VALUE_PREFIX = "role:";
 
+    String APP_VALUES = "appValues";
+
     String DEFAULT_SORT_VALUES = "defaultSortValues";
 
     String DEFAULT_LABEL_VALUES = "defaultLabelValues";
@@ -312,6 +314,15 @@ public interface FessProp {
                         }).filter(StringUtil::isNotBlank).toArray(n -> new String[n]);
     }
 
+    default void setAppValue(final String value) {
+        setSystemProperty(Constants.APP_VALUE_PROPERTY, value);
+        propMap.remove(APP_VALUES);
+    }
+
+    default String getAppValue() {
+        return getSystemProperty(Constants.APP_VALUE_PROPERTY, StringUtil.EMPTY);
+    }
+
     default void setDefaultLabelValue(final String value) {
         setSystemProperty(Constants.DEFAULT_LABEL_VALUE_PROPERTY, value);
         propMap.remove(DEFAULT_LABEL_VALUES);
diff --git a/src/main/resources/fess_label.properties b/src/main/resources/fess_label.properties
index cd479f997..995e4f7da 100644
--- a/src/main/resources/fess_label.properties
+++ b/src/main/resources/fess_label.properties
@@ -381,6 +381,7 @@ labels.search_log_enabled=Search Logging
 labels.user_info_enabled=User Logging
 labels.user_favorite_enabled=Favorite Logging
 labels.web_api_json_enabled=JSON Response
+labels.app_value=System Properties
 labels.default_label_value=Default Label Value
 labels.default_sort_value=Default Sort Value
 labels.virtual_host_value=Virtual Hosts
diff --git a/src/main/resources/fess_label_de.properties b/src/main/resources/fess_label_de.properties
index 82462ea50..222f1368f 100644
--- a/src/main/resources/fess_label_de.properties
+++ b/src/main/resources/fess_label_de.properties
@@ -371,6 +371,7 @@ labels.search_log_enabled=Protokollierung Suche
 labels.user_info_enabled=User Logging
 labels.user_favorite_enabled=Favorite Logging
 labels.web_api_json_enabled=JSON Response
+labels.app_value=System Properties
 labels.default_label_value=Default Label Value
 labels.default_sort_value=Default Sort Value
 labels.virtual_host_value=Virtual Hosts
diff --git a/src/main/resources/fess_label_en.properties b/src/main/resources/fess_label_en.properties
index cd479f997..995e4f7da 100644
--- a/src/main/resources/fess_label_en.properties
+++ b/src/main/resources/fess_label_en.properties
@@ -381,6 +381,7 @@ labels.search_log_enabled=Search Logging
 labels.user_info_enabled=User Logging
 labels.user_favorite_enabled=Favorite Logging
 labels.web_api_json_enabled=JSON Response
+labels.app_value=System Properties
 labels.default_label_value=Default Label Value
 labels.default_sort_value=Default Sort Value
 labels.virtual_host_value=Virtual Hosts
diff --git a/src/main/resources/fess_label_ja.properties b/src/main/resources/fess_label_ja.properties
index cebc3ab93..723ce9ace 100644
--- a/src/main/resources/fess_label_ja.properties
+++ b/src/main/resources/fess_label_ja.properties
@@ -373,6 +373,7 @@ labels.search_log_enabled=検索ログ
 labels.user_info_enabled=ユーザログ
 labels.user_favorite_enabled=お気に入りログ
 labels.web_api_json_enabled=JSONレスポンス
+labels.app_value=システムプロパティ
 labels.default_label_value=デフォルトのラベル値
 labels.default_sort_value=デフォルトのソート値
 labels.virtual_host_value=仮想ホスト
diff --git a/src/main/resources/fess_label_ko.properties b/src/main/resources/fess_label_ko.properties
index bd44cd7bf..b63839e56 100644
--- a/src/main/resources/fess_label_ko.properties
+++ b/src/main/resources/fess_label_ko.properties
@@ -355,6 +355,7 @@ labels.search_log_enabled = 검색 로그
 labels.user_info_enabled = 사용자 로그
 labels.user_favorite_enabled = 즐겨찾기 로그
 labels.web_api_json_enabled = JSON 응답
+labels.app_value=System Properties
 labels.default_label_value = 기본 레이블 값
 labels.default_sort_value = 기본 정렬 값
 labels.append_query_param_enabled = 검색 매개 변수 추가
diff --git a/src/main/resources/fess_label_ru.properties b/src/main/resources/fess_label_ru.properties
index c81c0d725..67da6d11e 100644
--- a/src/main/resources/fess_label_ru.properties
+++ b/src/main/resources/fess_label_ru.properties
@@ -358,6 +358,7 @@ labels.search_log_enabled=Search Logging
 labels.user_info_enabled=User Logging
 labels.user_favorite_enabled=Favorite Logging
 labels.web_api_json_enabled=JSON Response
+labels.app_value=System Properties
 labels.default_label_value=Default Label Value
 labels.default_sort_value=Default Sort Value
 labels.append_query_param_enabled=Append Params to URL
diff --git a/src/main/webapp/WEB-INF/view/admin/general/admin_general.jsp b/src/main/webapp/WEB-INF/view/admin/general/admin_general.jsp
index 2852ee70f..f263c480a 100644
--- a/src/main/webapp/WEB-INF/view/admin/general/admin_general.jsp
+++ b/src/main/webapp/WEB-INF/view/admin/general/admin_general.jsp
@@ -93,6 +93,15 @@
 											</div>
 										</div>
 									</div>
+									<div class="form-group">
+										<label for="appValue" class="col-sm-3 control-label"><la:message
+												key="labels.app_value" /></label>
+										<div class="col-sm-9">
+											<la:errors property="appValue" />
+											<la:textarea styleId="appValue" property="appValue"
+												styleClass="form-control" />
+										</div>
+									</div>
 									<div class="form-group">
 										<label for="defaultLabelValue" class="col-sm-3 control-label"><la:message
 												key="labels.default_label_value" /></label>
diff --git a/src/test/java/org/codelibs/fess/helper/SystemHelperTest.java b/src/test/java/org/codelibs/fess/helper/SystemHelperTest.java
index 52efe7425..b75dd58db 100644
--- a/src/test/java/org/codelibs/fess/helper/SystemHelperTest.java
+++ b/src/test/java/org/codelibs/fess/helper/SystemHelperTest.java
@@ -30,6 +30,10 @@ public class SystemHelperTest extends UnitFessTestCase {
             @Override
             protected void parseProjectProperties() {
             }
+
+            @Override
+            public void updateSystemProperties() {
+            }
         };
         systemHelper.init();
     }