diff --git a/Rust/source/src/lib.rs b/Rust/source/src/lib.rs
index 0924daedd96dbf27bbfd0daa2b7f7ab360a54d36..080215e965dcb5119faa62a61066798f7440edd4 100644
--- a/Rust/source/src/lib.rs
+++ b/Rust/source/src/lib.rs
@@ -1,4 +1,5 @@
 mod yitgen;
+
 use yitgen::gen::YitIdHelper;
 use yitgen::contract::*;
 
@@ -8,6 +9,11 @@ pub extern "C" fn SetIdGenerator(options: IdGeneratorOptions) {
     YitIdHelper::SetIdGenerator(options);
 }
 
+#[no_mangle]
+pub extern "C" fn SetWorkerId(workerId: u32) {
+    YitIdHelper::SetWorkerId(workerId);
+}
+
 #[no_mangle]
 pub extern "C" fn NextId() -> i64 {
     YitIdHelper::NextId()
diff --git a/Rust/source/src/yitgen/contract/id_generator_options.rs b/Rust/source/src/yitgen/contract/id_generator_options.rs
index ab5a63409d9c99d1c7b8436b398cd20aef94a80e..f1905052f8b2721114c1765176f36fcd71ef6a36 100644
--- a/Rust/source/src/yitgen/contract/id_generator_options.rs
+++ b/Rust/source/src/yitgen/contract/id_generator_options.rs
@@ -16,7 +16,7 @@ pub struct IdGeneratorOptions {
     pub SeqBitLength: u8,
     /// 最大序列数（含），（由 SeqBitLength 计算的最大值）
     pub MaxSeqNumber: u32,
-    /// 最小序列数（含），默认5，不小于1，不大于 MaxSeqNumber
+    /// 最小序列数（含），默认5，不小于5，不大于 MaxSeqNumber
     pub MinSeqNumber: u32,
     /// 最大漂移次数（含），默认2000，推荐范围 500-20000（与计算能力有关）
     pub TopOverCostCount: u32,
diff --git a/Rust/source/src/yitgen/core/snow_worker_m1.rs b/Rust/source/src/yitgen/core/snow_worker_m1.rs
index 0117f7fb90aa1d9a897d040fa8fe7a1810b5e4f6..7ed297ea5cbfb2dc770acbc2e7fc3b8c9c345150 100644
--- a/Rust/source/src/yitgen/core/snow_worker_m1.rs
+++ b/Rust/source/src/yitgen/core/snow_worker_m1.rs
@@ -89,10 +89,10 @@ impl SnowWorkerM1 {
         }
 
         // MinSeqNumber
-        if options.MinSeqNumber > maxSeqNumber {
-            panic!("MinSeqNumber error. (range:[1, {}]", maxSeqNumber);
+        if options.MinSeqNumber > maxSeqNumber || options.MinSeqNumber < 5 {
+            panic!("MinSeqNumber error. (range:[5, {}]", maxSeqNumber);
         } else {
-            self.MinSeqNumber = options.MinSeqNumber;
+            self.MinSeqNumber = if options.MinSeqNumber <= 0 { 5 } else { options.MinSeqNumber };
         }
 
         self.TopOverCostCount = if options.TopOverCostCount == 0 { 2000 } else { options.TopOverCostCount };
diff --git a/Rust/source/src/yitgen/gen/yit_id_helper.rs b/Rust/source/src/yitgen/gen/yit_id_helper.rs
index 19bd4030d5b53948b9313ebb468ab07d6336f5d5..ae1e5e7996c85fb8e4f6493de90fa0e5e0262387 100644
--- a/Rust/source/src/yitgen/gen/yit_id_helper.rs
+++ b/Rust/source/src/yitgen/gen/yit_id_helper.rs
@@ -13,7 +13,6 @@ pub struct YitIdHelper;
 static mut idGenInstance: Option<Arc<Mutex<DefaultIdGenerator>>> = None;
 
 impl YitIdHelper {
-
     fn IdGenInstance() -> Arc<Mutex<DefaultIdGenerator>> {
         unsafe {
             idGenInstance.get_or_insert_with(|| {
@@ -28,6 +27,13 @@ impl YitIdHelper {
         idgen.Worker.SetOptions(options);
     }
 
+    pub fn SetWorkerId(workerId: u32) {
+        let mut idgenArc = YitIdHelper::IdGenInstance();
+        let mut idgen = idgenArc.lock().unwrap();
+        let mut options = IdGeneratorOptions::New(workerId);
+        idgen.Worker.SetOptions(options);
+    }
+
     pub fn NextId() -> i64 {
         let mut idgenArc = YitIdHelper::IdGenInstance();
         let mut idgen = idgenArc.lock().unwrap();