diff --git a/modules/tag/queries/getDocumentSrlByTag.xml b/modules/tag/queries/getDocumentSrlByTag.xml
new file mode 100644
index 000000000..1ed8cc737
--- /dev/null
+++ b/modules/tag/queries/getDocumentSrlByTag.xml
@@ -0,0 +1,12 @@
+<query id="getDocumentSrlByTag" action="select">
+    <tables>
+        <table name="tags" />
+    </tables>
+    <columns>
+        <column name="document_srl" />
+    </columns>
+    <conditions>
+        <condition operation="in" column="module_srl" var="module_srl" filter="number" />
+        <condition operation="equal" column="tag" var="tag" notnull="notnull" pipe="and" />
+    </conditions>
+</query>
diff --git a/modules/tag/queries/getDocumentsTagList.xml b/modules/tag/queries/getDocumentsTagList.xml
new file mode 100644
index 000000000..0ecee7415
--- /dev/null
+++ b/modules/tag/queries/getDocumentsTagList.xml
@@ -0,0 +1,18 @@
+<query id="getTagWithUsedList" action="select">
+    <tables>
+        <table name="tags" />
+    </tables>
+    <columns>
+        <column name="tag" />
+        <column name="count(*)" alias="count" />
+    </columns>
+    <conditions>
+        <condition operation="in" column="document_srl" var="document_srl" />
+    </conditions>
+    <navigation>
+        <index var="count" default="count" order="desc" />
+    </navigation>
+    <groups>
+        <group column="tag" />
+    </groups>
+</query>
diff --git a/modules/tag/tag.model.php b/modules/tag/tag.model.php
index 606058384..d6b36cf77 100644
--- a/modules/tag/tag.model.php
+++ b/modules/tag/tag.model.php
@@ -34,5 +34,51 @@
 
             return $output;
         }
+
+
+        /**
+         * @brief tag로 document_srl를 가져오기
+         **/
+		function getDocumentSrlByTag($obj){
+			if(is_array($obj->module_srl)) $args->module_srl = implode(',', $obj->module_srl);
+            else $args->module_srl = $obj->module_srl;
+
+			$args->tag = $obj->tag;
+			$output = executeQueryArray('tag.getDocumentSrlByTag', $args);
+            if(!$output->toBool()) return $output;
+
+            return $output;
+		}
+
+        /**
+         * @brief document 에서 사용된 tag 가져오기
+         **/
+		function getDocumentsTagList($obj){
+			if(is_array($obj->document_srl)) $args->document_srl = implode(',', $obj->document_srl);
+            else $args->document_srl = $obj->document_srl;
+
+            $output = executeQueryArray('tag.getDocumentsTagList', $args);
+            if(!$output->toBool()) return $output;
+
+            return $output;
+		}
+
+		/**
+		 * @brief 특정tag과 함께 사용된 tag목록
+		 **/
+		function getTagWithUsedList($obj){
+			if(is_array($obj->module_srl)) $args->module_srl = implode(',', $obj->module_srl);
+			else $args->module_srl = $obj->module_srl;
+
+			$args->tag = $obj->tag;
+			$output = $this->getDocumentSrlByTag($args);
+			$document_srl = array();
+
+			foreach($output->data as $k => $v) $document_srl[] = $v->document_srl;
+			unset($args);
+			$args->document_srl = $document_srl;
+			$output = $this->getDocumentsTagList($args);
+			return $output;
+		}
     }
 ?>