diff --git a/app/src/main/java/io/legado/app/data/AppDatabase.kt b/app/src/main/java/io/legado/app/data/AppDatabase.kt
index f332fec37..d9af543b2 100644
--- a/app/src/main/java/io/legado/app/data/AppDatabase.kt
+++ b/app/src/main/java/io/legado/app/data/AppDatabase.kt
@@ -19,7 +19,7 @@ import java.util.*
         RssSource::class, Bookmark::class, RssArticle::class, RssReadRecord::class,
         RssStar::class, TxtTocRule::class, ReadRecord::class, HttpTTS::class, Cache::class,
         RuleSub::class],
-    version = 27,
+    version = 28,
     exportSchema = true
 )
 abstract class AppDatabase : RoomDatabase() {
@@ -53,7 +53,8 @@ abstract class AppDatabase : RoomDatabase() {
                     migration_10_11, migration_11_12, migration_12_13, migration_13_14,
                     migration_14_15, migration_15_17, migration_17_18, migration_18_19,
                     migration_19_20, migration_20_21, migration_21_22, migration_22_23,
-                    migration_23_24, migration_24_25, migration_25_26, migration_26_27
+                    migration_23_24, migration_24_25, migration_25_26, migration_26_27,
+                    migration_27_28
                 )
                 .allowMainThreadQueries()
                 .addCallback(dbCallback)
@@ -257,6 +258,13 @@ abstract class AppDatabase : RoomDatabase() {
                 database.execSQL("CREATE UNIQUE INDEX IF NOT EXISTS `index_bookmarks_time` ON `bookmarks` (`time`)")
             }
         }
+
+        private val migration_27_28 = object : Migration(27, 28) {
+            override fun migrate(database: SupportSQLiteDatabase) {
+                database.execSQL("ALTER TABLE rssArticles ADD variable TEXT")
+                database.execSQL("ALTER TABLE rssStars ADD variable TEXT")
+            }
+        }
     }
 
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/data/dao/RssArticleDao.kt b/app/src/main/java/io/legado/app/data/dao/RssArticleDao.kt
index 10bf63933..c05dcb880 100644
--- a/app/src/main/java/io/legado/app/data/dao/RssArticleDao.kt
+++ b/app/src/main/java/io/legado/app/data/dao/RssArticleDao.kt
@@ -12,7 +12,7 @@ interface RssArticleDao {
     fun get(origin: String, link: String): RssArticle?
 
     @Query(
-        """select t1.link, t1.sort, t1.origin, t1.`order`, t1.title, t1.content, t1.description, t1.image, t1.pubDate, ifNull(t2.read, 0) as read
+        """select t1.link, t1.sort, t1.origin, t1.`order`, t1.title, t1.content, t1.description, t1.image, t1.pubDate, t1.variable, ifNull(t2.read, 0) as read
         from rssArticles as t1 left join rssReadRecords as t2
         on t1.link = t2.record  where origin = :origin and sort = :sort
         order by `order` desc"""
diff --git a/app/src/main/java/io/legado/app/data/entities/BaseBook.kt b/app/src/main/java/io/legado/app/data/entities/BaseBook.kt
index e52f9e185..ac97fb252 100644
--- a/app/src/main/java/io/legado/app/data/entities/BaseBook.kt
+++ b/app/src/main/java/io/legado/app/data/entities/BaseBook.kt
@@ -1,20 +1,18 @@
 package io.legado.app.data.entities
 
+import io.legado.app.model.analyzeRule.RuleData
 import io.legado.app.utils.splitNotBlank
 
-interface BaseBook {
+interface BaseBook : RuleData {
     var name: String
     var author: String
     var bookUrl: String
-    val variableMap: HashMap<String, String>
     var kind: String?
     var wordCount: String?
 
     var infoHtml: String?
     var tocHtml: String?
 
-    fun putVariable(key: String, value: String) {}
-
     fun getKindList(): List<String> {
         val kindList = arrayListOf<String>()
         wordCount?.let {
diff --git a/app/src/main/java/io/legado/app/data/entities/RssArticle.kt b/app/src/main/java/io/legado/app/data/entities/RssArticle.kt
index fda4769d2..7847c0631 100644
--- a/app/src/main/java/io/legado/app/data/entities/RssArticle.kt
+++ b/app/src/main/java/io/legado/app/data/entities/RssArticle.kt
@@ -1,6 +1,11 @@
 package io.legado.app.data.entities
 
 import androidx.room.Entity
+import androidx.room.Ignore
+import io.legado.app.model.analyzeRule.RuleData
+import io.legado.app.utils.GSON
+import io.legado.app.utils.fromJsonObject
+import kotlinx.parcelize.IgnoredOnParcel
 
 
 @Entity(
@@ -17,16 +22,29 @@ data class RssArticle(
     var description: String? = null,
     var content: String? = null,
     var image: String? = null,
-    var read: Boolean = false
-) {
-    
+    var read: Boolean = false,
+    var variable: String? = null
+) : RuleData {
+
     override fun hashCode() = link.hashCode()
-    
+
     override fun equals(other: Any?): Boolean {
         other ?: return false
         return if (other is RssArticle) origin == other.origin && link == other.link else false
     }
-    
+
+    @delegate:Transient
+    @delegate:Ignore
+    @IgnoredOnParcel
+    override val variableMap by lazy {
+        GSON.fromJsonObject<HashMap<String, String>>(variable) ?: HashMap()
+    }
+
+    override fun putVariable(key: String, value: String) {
+        variableMap[key] = value
+        variable = GSON.toJson(variableMap)
+    }
+
     fun toStar() = RssStar(
         origin = origin,
         sort = sort,
diff --git a/app/src/main/java/io/legado/app/data/entities/RssStar.kt b/app/src/main/java/io/legado/app/data/entities/RssStar.kt
index 7e78550bb..f583e1936 100644
--- a/app/src/main/java/io/legado/app/data/entities/RssStar.kt
+++ b/app/src/main/java/io/legado/app/data/entities/RssStar.kt
@@ -1,6 +1,11 @@
 package io.legado.app.data.entities
 
 import androidx.room.Entity
+import androidx.room.Ignore
+import io.legado.app.model.analyzeRule.RuleData
+import io.legado.app.utils.GSON
+import io.legado.app.utils.fromJsonObject
+import kotlinx.parcelize.IgnoredOnParcel
 
 
 @Entity(
@@ -16,16 +21,30 @@ data class RssStar(
     var pubDate: String? = null,
     var description: String? = null,
     var content: String? = null,
-    var image: String? = null
-) {
+    var image: String? = null,
+    var variable: String? = null
+) : RuleData {
+
+    @delegate:Transient
+    @delegate:Ignore
+    @IgnoredOnParcel
+    override val variableMap by lazy {
+        GSON.fromJsonObject<HashMap<String, String>>(variable) ?: HashMap()
+    }
+
+    override fun putVariable(key: String, value: String) {
+        variableMap[key] = value
+        variable = GSON.toJson(variableMap)
+    }
+
     fun toRssArticle() = RssArticle(
-            origin = origin,
-            sort = sort,
-            title = title,
-            link = link,
-            pubDate = pubDate,
-            description = description,
-            content = content,
-            image = image
-        )
+        origin = origin,
+        sort = sort,
+        title = title,
+        link = link,
+        pubDate = pubDate,
+        description = description,
+        content = content,
+        image = image
+    )
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/model/analyzeRule/RuleData.kt b/app/src/main/java/io/legado/app/model/analyzeRule/RuleData.kt
new file mode 100644
index 000000000..a7bc8c72f
--- /dev/null
+++ b/app/src/main/java/io/legado/app/model/analyzeRule/RuleData.kt
@@ -0,0 +1,9 @@
+package io.legado.app.model.analyzeRule
+
+interface RuleData {
+
+    val variableMap: HashMap<String, String>
+
+    fun putVariable(key: String, value: String)
+
+}
\ No newline at end of file