diff --git a/designer-base/src/main/java/com/fr/design/formula/FormulaConstants.java b/designer-base/src/main/java/com/fr/design/formula/FormulaConstants.java
new file mode 100644
index 0000000000..97430ba7ff
--- /dev/null
+++ b/designer-base/src/main/java/com/fr/design/formula/FormulaConstants.java
@@ -0,0 +1,50 @@
+package com.fr.design.formula;
+
+import com.fr.stable.StringUtils;
+
+public enum FormulaConstants {
+
+    PAGE_NUMBER("$$page_number", "Page_Number"),
+    TOTAL_PAGE_NUMBER("$$totalPage_number", "Total_Page_Number"),
+    FINE_USERNAME("$fine_username", "Fine_Username"),
+    FINE_ROLE("$fine_role", "Fine_Role"),
+    FINE_POSITION("$fine_position", "Fine_Position"),
+    NULL("NULL", "Null"),
+    NOFILTER("NOFILTER", "No_Filter"),
+    REPORT_NAME("reportName", "Report_Name"),
+    FORMLET_NAME("formletName", "Formlet_Name"),
+    SERVLET_URL("servletURL", "Servlet_URL"),
+    SERVER_SCHEMA("serverSchema", "Server_Schema"),
+    SERVER_NAME("serverName", "Server_Name"),
+    SERVER_PORT("serverPort", "Server_Port"),
+    SERVER_URL("serverURL", "Server_URL"),
+    CONTEXT_PATH("contextPath", "Context_Path"),
+    SESSION_ID("sessionID", "SessionID");
+
+
+    private String key;
+    private String value;
+
+    private FormulaConstants(String key, String value) {
+        this.key = key;
+        this.value = value;
+    }
+
+    public String getKey() {
+        return key;
+    }
+
+    public String getValue() {
+        return value;
+    }
+
+    public static String getValueByKey(String key) {
+        for (FormulaConstants formulaConstant : values()) {
+            if (formulaConstant.getKey().equals(key)) {
+                return formulaConstant.getValue();
+            }
+        }
+        return StringUtils.EMPTY;
+    }
+
+}
diff --git a/designer-base/src/main/java/com/fr/design/formula/FormulaPane.java b/designer-base/src/main/java/com/fr/design/formula/FormulaPane.java
index 2cf6efa910..87d0a3a985 100644
--- a/designer-base/src/main/java/com/fr/design/formula/FormulaPane.java
+++ b/designer-base/src/main/java/com/fr/design/formula/FormulaPane.java
@@ -19,6 +19,7 @@ import com.fr.design.gui.syntax.ui.rsyntaxtextarea.SyntaxConstants;
 import com.fr.design.layout.FRGUIPaneFactory;
 import com.fr.design.mainframe.DesignerContext;
 import com.fr.design.utils.gui.GUICoreUtils;
+import com.fr.general.ComparatorUtils;
 import com.fr.log.FineLoggerFactory;
 import com.fr.parser.FRLexer;
 import com.fr.parser.FRParser;
@@ -779,31 +780,35 @@ public class FormulaPane extends BasicPane implements KeyListener, UIFormula {
         private void initVariablesTreeSelectionListener() {
             variablesTree.addTreeSelectionListener(new TreeSelectionListener() {
                 public void valueChanged(TreeSelectionEvent e) {
-                    Object selectedValue = ((DefaultMutableTreeNode) variablesTree.getLastSelectedPathComponent()).getUserObject();
+                    DefaultMutableTreeNode selectedTreeNode = (DefaultMutableTreeNode) variablesTree.getLastSelectedPathComponent();
+                    Object selectedValue = selectedTreeNode.getUserObject();
+                    Object selectedParentValue = ((DefaultMutableTreeNode)selectedTreeNode.getParent()).getUserObject();
+
                     if (selectedValue == null) {
                         return;
                     }
-                    StringBuilder desBuf = new StringBuilder();
-                    try {
-                        String path;
-                        Locale locale = FRContext.getLocale();
-                        if (locale.equals(Locale.CHINA)) {
-                            path = "/com/fr/design/insert/formula/variable/cn/";
+
+                    if (selectedValue instanceof  TextUserObject) {
+                        //有公式说明的条件：1.属于TextUserObject 2.parent是系统参数
+                        if (ComparatorUtils.equals(((TextFolderUserObject) selectedParentValue).getText(),
+                                com.fr.design.i18n.Toolkit.i18nText("Fine-Design_Basic_FormulaPane_Variables"))) {
+                            descriptionTextArea.setText(getVariableDescription((TextUserObject) selectedValue));
                         } else {
-                            path = "/com/fr/design/insert/formula/variable/en/";
-                        }
-                        if (selectedValue instanceof TextUserObject) {
-                            desBuf = getText((TextUserObject) selectedValue, path);
+                            descriptionTextArea.setText("");
                         }
-                    } catch (IOException exp) {
-                        FineLoggerFactory.getLogger().error(exp.getMessage(), exp);
+                    } else if (selectedValue instanceof TextFolderUserObject) {
+                        descriptionTextArea.setText("");
                     }
-                    descriptionTextArea.setText(desBuf.toString());
                     descriptionTextArea.moveCaretPosition(0);
                 }
             });
         }
 
+        private String getVariableDescription(TextUserObject selectedValue) {
+
+            return com.fr.design.i18n.Toolkit.i18nText("Fine-Design_CurReport_Variable_" + FormulaConstants.getValueByKey(selectedValue.getText()));
+        }
+
         private void initVariablesTree() {
             // vairable.
             variablesTree = new JTree();