diff --git a/README.md b/README.md
index ba146fdc..9405c0ec 100644
--- a/README.md
+++ b/README.md
@@ -252,6 +252,7 @@ zerobot [-h] [-n nickname] [-t token] [-u url] [-p prefix] [-d|w] [-c|s config.j
   `import _ "github.com/FloatTech/ZeroBot-Plugin/plugin/thesaurus"`
 
   - [x] 切换[kimo|傲娇|可爱]词库
+  - [x] 设置词库触发概率0.x (0<x<9)
 
 </details>
 <details>
diff --git a/plugin/thesaurus/chat.go b/plugin/thesaurus/chat.go
index 3ba82c1d..f5886e61 100644
--- a/plugin/thesaurus/chat.go
+++ b/plugin/thesaurus/chat.go
@@ -21,7 +21,7 @@ func init() {
 	engine := control.Register("thesaurus", &ctrl.Options[*zero.Ctx]{
 		DisableOnDefault: false,
 		Brief:            "词典匹配回复",
-		Help:             "- 切换[kimo|傲娇|可爱]词库",
+		Help:             "- 切换[kimo|傲娇|可爱]词库\n- 设置词库触发概率0.x (0<x<9)",
 		PublicDataFolder: "Chat",
 	})
 	engine.OnRegex(`^切换(kimo|傲娇|可爱)词库$`, zero.AdminPermission).SetBlock(true).Handle(func(ctx *zero.Ctx) {
@@ -34,15 +34,40 @@ func init() {
 		if gid == 0 {
 			gid = -ctx.Event.UserID
 		}
-		var err error
+		d := c.GetData(gid)
+		t := int64(0)
 		switch ctx.State["regex_matched"].([]string)[1] {
 		case "kimo":
-			err = c.SetData(gid, tKIMO)
+			t = tKIMO
 		case "傲娇":
-			err = c.SetData(gid, tDERE)
+			t = tDERE
 		case "可爱":
-			err = c.SetData(gid, tKAWA)
+			t = tKAWA
 		}
+		err := c.SetData(gid, (d&^3)|t)
+		if err != nil {
+			ctx.SendChain(message.Text("ERROR: ", err))
+			return
+		}
+	})
+	engine.OnRegex(`^设置词库触发概率\s*0.(\d)$`, zero.AdminPermission).SetBlock(true).Handle(func(ctx *zero.Ctx) {
+		c, ok := ctx.State["manager"].(*ctrl.Control[*zero.Ctx])
+		if !ok {
+			ctx.SendChain(message.Text("ERROR: 找不到 manager"))
+			return
+		}
+		n := ctx.State["regex_matched"].([]string)[1][0] - '0'
+		if n <= 0 || n >= 9 {
+			ctx.SendChain(message.Text("ERROR: 概率越界"))
+			return
+		}
+		n-- // 0~7
+		gid := ctx.Event.GroupID
+		if gid == 0 {
+			gid = -ctx.Event.UserID
+		}
+		d := c.GetData(gid)
+		err := c.SetData(gid, (d&3)|(int64(n)<<59))
 		if err != nil {
 			ctx.SendChain(message.Text("ERROR: ", err))
 			return
@@ -142,6 +167,9 @@ const (
 
 func canmatch(typ int64) zero.Rule {
 	return func(ctx *zero.Ctx) bool {
+		if zero.HasPicture(ctx) {
+			return false
+		}
 		c, ok := ctx.State["manager"].(*ctrl.Control[*zero.Ctx])
 		if !ok {
 			return false
@@ -150,7 +178,8 @@ func canmatch(typ int64) zero.Rule {
 		if gid == 0 {
 			gid = -ctx.Event.UserID
 		}
-		return c.GetData(gid) == typ
+		d := c.GetData(gid)
+		return d&3 == typ && rand.Int63n(10) <= d>>59
 	}
 }