diff --git a/src/main/java/org/codelibs/fess/app/web/admin/searchlist/AdminSearchlistAction.java b/src/main/java/org/codelibs/fess/app/web/admin/searchlist/AdminSearchlistAction.java
index 8f4a6bcd0..65cb64643 100644
--- a/src/main/java/org/codelibs/fess/app/web/admin/searchlist/AdminSearchlistAction.java
+++ b/src/main/java/org/codelibs/fess/app/web/admin/searchlist/AdminSearchlistAction.java
@@ -186,34 +186,21 @@ public class AdminSearchlistAction extends FessAdminAction {
     // -----------------------------------------------------
     // Confirm
     // -------
-    @Execute
-    public HtmlResponse confirmDelete(final ListForm form) {
-        return asHtml(path_AdminSearchlist_ConfirmDeleteJsp);
-    }
 
     @Execute
-    public HtmlResponse delete(final ListForm form) {
-        return deleteByQuery(form);
-    }
-
-    private HtmlResponse deleteByQuery(final ListForm form) {
+    public HtmlResponse delete(final DeleteForm form) {
+        validate(form, messages -> {}, () -> asHtml(path_AdminSearchlist_IndexJsp));
         final String docId = form.docId;
         if (jobHelper.isCrawlProcessRunning()) {
-            // TODO Error
+            throwValidationError(messages -> messages.addErrorsCannotDeleteDocBecauseOfRunning(GLOBAL), () -> asHtml(path_AdminSearchlist_IndexJsp));
         }
-        final Thread thread = new Thread(() -> {
-            if (!jobHelper.isCrawlProcessRunning()) {
-                System.currentTimeMillis();
-                try {
-                    final QueryBuilder query = QueryBuilders.termQuery(fieldHelper.docIdField, docId);
-                    fessEsClient.deleteByQuery(fieldHelper.docIndex, fieldHelper.docType, query);
-                } catch (final Exception e) {
-                    // TODO Log
-            }
+        try {
+            final QueryBuilder query = QueryBuilders.termQuery(fieldHelper.docIdField, docId);
+            fessEsClient.deleteByQuery(fieldHelper.docIndex, fieldHelper.docType, query);
+            saveInfo(messages -> messages.addSuccessDeleteSolrIndex(GLOBAL));
+        } catch (final Exception e) {
+            throwValidationError(messages -> messages.addErrorsFailedToDeleteDocInAdmin(GLOBAL), () -> asHtml(path_AdminSearchlist_IndexJsp));
         }
-    }   );
-        thread.start();
-        saveInfo(messages -> messages.addSuccessDeleteSolrIndex(GLOBAL));
         return redirectWith(getClass(), moreUrl("search").params("query", form.query));
     }
 
diff --git a/src/main/java/org/codelibs/fess/app/web/admin/searchlist/DeleteForm.java b/src/main/java/org/codelibs/fess/app/web/admin/searchlist/DeleteForm.java
new file mode 100644
index 000000000..005ff2234
--- /dev/null
+++ b/src/main/java/org/codelibs/fess/app/web/admin/searchlist/DeleteForm.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2012-2015 CodeLibs Project and the Others.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific language
+ * governing permissions and limitations under the License.
+ */
+package org.codelibs.fess.app.web.admin.searchlist;
+
+import java.io.Serializable;
+
+import javax.validation.constraints.Size;
+
+import org.lastaflute.web.validation.Required;
+
+public class DeleteForm implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @Size(max = 1000)
+    public String query;
+
+    @Required
+    public String docId;
+
+}
diff --git a/src/main/java/org/codelibs/fess/app/web/admin/searchlist/ListForm.java b/src/main/java/org/codelibs/fess/app/web/admin/searchlist/ListForm.java
index 25c309ddd..2468cbbe1 100644
--- a/src/main/java/org/codelibs/fess/app/web/admin/searchlist/ListForm.java
+++ b/src/main/java/org/codelibs/fess/app/web/admin/searchlist/ListForm.java
@@ -53,12 +53,6 @@ public class ListForm implements SearchRequestParams, Serializable {
 
     public String[] lang;
 
-    // @Required
-    public String docId;
-
-    // @Required
-    public String url;
-
     @Override
     public String getQuery() {
         return query;
diff --git a/src/main/java/org/codelibs/fess/mylasta/action/FessMessages.java b/src/main/java/org/codelibs/fess/mylasta/action/FessMessages.java
index a8c14927a..98e62a25b 100644
--- a/src/main/java/org/codelibs/fess/mylasta/action/FessMessages.java
+++ b/src/main/java/org/codelibs/fess/mylasta/action/FessMessages.java
@@ -324,6 +324,12 @@ public class FessMessages extends FessLabels {
     /** The key of the message: Invalid password. */
     public static final String ERRORS_password_does_not_exist_in_session = "{errors.password_does_not_exist_in_session}";
 
+    /** The key of the message: Crawler is running. The document cannot be deteled. */
+    public static final String ERRORS_cannot_delete_doc_because_of_running = "{errors.cannot_delete_doc_because_of_running}";
+
+    /** The key of the message: Failed to delete document. */
+    public static final String ERRORS_failed_to_delete_doc_in_admin = "{errors.failed_to_delete_doc_in_admin}";
+
     /** The key of the message: The given query has unknown condition. */
     public static final String ERRORS_invalid_query_unknown = "{errors.invalid_query_unknown}";
 
@@ -1924,6 +1930,34 @@ public class FessMessages extends FessLabels {
         return this;
     }
 
+    /**
+     * Add the created action message for the key 'errors.cannot_delete_doc_because_of_running' with parameters.
+     * <pre>
+     * message: Crawler is running. The document cannot be deteled.
+     * </pre>
+     * @param property The property name for the message. (NotNull)
+     * @return this. (NotNull)
+     */
+    public FessMessages addErrorsCannotDeleteDocBecauseOfRunning(String property) {
+        assertPropertyNotNull(property);
+        add(property, new ActionMessage(ERRORS_cannot_delete_doc_because_of_running));
+        return this;
+    }
+
+    /**
+     * Add the created action message for the key 'errors.failed_to_delete_doc_in_admin' with parameters.
+     * <pre>
+     * message: Failed to delete document.
+     * </pre>
+     * @param property The property name for the message. (NotNull)
+     * @return this. (NotNull)
+     */
+    public FessMessages addErrorsFailedToDeleteDocInAdmin(String property) {
+        assertPropertyNotNull(property);
+        add(property, new ActionMessage(ERRORS_failed_to_delete_doc_in_admin));
+        return this;
+    }
+
     /**
      * Add the created action message for the key 'errors.invalid_query_unknown' with parameters.
      * <pre>
diff --git a/src/main/resources/fess_message.properties b/src/main/resources/fess_message.properties
index a4d94f43a..42026ab7d 100644
--- a/src/main/resources/fess_message.properties
+++ b/src/main/resources/fess_message.properties
@@ -129,6 +129,8 @@ errors.failed_to_reload_core=Failed to reload core. Check log files.
 errors.blank_password=Password is required.
 errors.invalid_confirm_password=Confirm Password does not match.
 errors.password_does_not_exist_in_session=Invalid password.
+errors.cannot_delete_doc_because_of_running=Crawler is running. The document cannot be deteled.
+errors.failed_to_delete_doc_in_admin=Failed to delete document.
 
 errors.invalid_query_unknown=The given query has unknown condition.
 errors.invalid_query_quoted=An invalid quote character is used.