diff --git a/src/data/Notes.java b/src/data/Notes.java
index c99c394..b4f2014 100644
--- a/src/data/Notes.java
+++ b/src/data/Notes.java
@@ -210,6 +210,14 @@ public class Notes { // 定义类，给模块的其他类提供变量定义
                  */
                 public static final String LOCKED = "locked"; // 锁定状态 ****
 
+                /*
+                 * The password
+                 * <P>
+                 * Type : TEXT
+                 * </P>
+                 */
+                public static final String PASSWORD = "password"; // 密码 *****
+
                 /*
                  * The picture
                  * <P>
diff --git a/src/data/NotesDatabaseHelper.java b/src/data/NotesDatabaseHelper.java
index a1969bf..9face1f 100644
--- a/src/data/NotesDatabaseHelper.java
+++ b/src/data/NotesDatabaseHelper.java
@@ -63,6 +63,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { // 该类为便签SQ
                     NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" +
 
                     NoteColumns.LOCKED + " INTEGER NOT NULL DEFAULT 0" +
+                    NoteColumns.PASSWORD + " TEXT NOT NULL DEFAULT ''," +
                     NoteColumns.PICTURE + " TEXT NOT NULL DEFAULT ''," +
 
                     ")";