diff --git a/src/common/constants/api.constant.ts b/src/common/constants/api.constant.ts
index f08643f3..9cdc7ab7 100644
--- a/src/common/constants/api.constant.ts
+++ b/src/common/constants/api.constant.ts
@@ -15,6 +15,7 @@ export const URL_CONSTANTS = {
   CHANGE_SEQ: 'change-seq',
   DELETE_TX: 'delete',
   GET_ADDRESS_SIMULATE: 'simulate/address',
+  GET_NEXT_SEQUENCE: 'next-seq',
   SIMULATE_TX: 'simulate',
   broadcasting: 'broadcasting',
   signing: 'signing',
diff --git a/src/modules/multisig-transaction/dto/request/get-next-seq-query.req.ts b/src/modules/multisig-transaction/dto/request/get-next-seq-query.req.ts
new file mode 100644
index 00000000..81a5d7d1
--- /dev/null
+++ b/src/modules/multisig-transaction/dto/request/get-next-seq-query.req.ts
@@ -0,0 +1,13 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { Type } from 'class-transformer';
+import { IsNumber } from 'class-validator';
+
+export class GetNextSeqQueryDto {
+  @IsNumber()
+  @ApiProperty({
+    description: 'Safe Id',
+    example: 1,
+  })
+  @Type(() => Number)
+  safeId: number;
+}
diff --git a/src/modules/multisig-transaction/dto/request/index.ts b/src/modules/multisig-transaction/dto/request/index.ts
index 2a3c23c8..7eac0d5b 100644
--- a/src/modules/multisig-transaction/dto/request/index.ts
+++ b/src/modules/multisig-transaction/dto/request/index.ts
@@ -9,3 +9,4 @@ export * from './get-tx-query.req';
 export * from './get-simulate.req';
 export * from './get-simulate-query.req';
 export * from './delete-tx.req';
+export * from './get-next-seq-query.req';
diff --git a/src/modules/multisig-transaction/multisig-transaction.controller.ts b/src/modules/multisig-transaction/multisig-transaction.controller.ts
index 710645bc..ecbd442f 100644
--- a/src/modules/multisig-transaction/multisig-transaction.controller.ts
+++ b/src/modules/multisig-transaction/multisig-transaction.controller.ts
@@ -31,6 +31,7 @@ import {
   ConfirmTransactionRequestDto,
   CreateTransactionRequestDto,
   GetAllTransactionsRequestDto,
+  GetNextSeqQueryDto,
   GetSimulateAddressQueryDto,
   GetTxDetailQueryDto,
   RejectTransactionRequestDto,
@@ -136,6 +137,18 @@ export class MultisigTransactionController {
     return this.multisigTransactionService.getTransactionDetail(query);
   }
 
+
+
+  @CommonGet({
+    url: URL_CONSTANTS.GET_NEXT_SEQUENCE,
+    summary: 'Get simulate addresses',
+    description: 'Get simulate addresses',
+  })
+  async getNextSeq(@Query() request: GetNextSeqQueryDto) {
+    this.logger.log('========== Get next sequence ==========');
+    return this.multisigTransactionService.getNextSequence(request.safeId);
+  }
+
   @CommonGet({
     url: URL_CONSTANTS.GET_ADDRESS_SIMULATE,
     summary: 'Get simulate addresses',
diff --git a/src/modules/multisig-transaction/multisig-transaction.processor.ts b/src/modules/multisig-transaction/multisig-transaction.processor.ts
index a9d4e868..2a5c5c79 100644
--- a/src/modules/multisig-transaction/multisig-transaction.processor.ts
+++ b/src/modules/multisig-transaction/multisig-transaction.processor.ts
@@ -32,7 +32,7 @@ export class MultisigTxProcessor {
     private readonly chainRepos: ChainRepository,
     private readonly multisigConfirmRepos: MultisigConfirmRepository,
     private readonly safeRepo: SafeRepository,
-  ) {}
+  ) { }
 
   @Process('send-tx')
   async handleTranscode(job: Job<SendTx>) {
@@ -87,14 +87,17 @@ export class MultisigTxProcessor {
   ): Promise<string> {
     const queueSequences = await this.multisigRepo.findSequenceInQueue(safeId);
 
-    let nextSeq = currentSequence;
-    for (const seq of queueSequences) {
-      if (seq !== nextSeq) {
+    let estimateSeq = currentSequence;
+    for (const inQueueSeq of queueSequences) {
+      if (inQueueSeq < estimateSeq) {
+        // skip invalid queue tx
+      } else if (inQueueSeq === estimateSeq) {
+        estimateSeq += 1
+      } else {
         break;
       }
-      nextSeq += 1;
     }
-    return nextSeq.toString();
+    return estimateSeq.toString();
   }
 
   async makeTx(
@@ -129,19 +132,19 @@ export class MultisigTxProcessor {
     const executeTransaction =
       chain.chainId.startsWith('evmos') || chain.chainId.startsWith('canto')
         ? this.ethermintHelper.makeMultisignedTxEthermint(
-            safePubkey,
-            Number(multisigTransaction.sequence),
-            sendFee,
-            encodedBodyBytes,
-            addressSignatureMap,
-          )
+          safePubkey,
+          Number(multisigTransaction.sequence),
+          sendFee,
+          encodedBodyBytes,
+          addressSignatureMap,
+        )
         : makeMultisignedTx(
-            safePubkey,
-            Number(multisigTransaction.sequence),
-            sendFee,
-            encodedBodyBytes,
-            addressSignatureMap,
-          );
+          safePubkey,
+          Number(multisigTransaction.sequence),
+          sendFee,
+          encodedBodyBytes,
+          addressSignatureMap,
+        );
 
     const encodeTransaction = Uint8Array.from(
       TxRaw.encode(executeTransaction).finish(),
diff --git a/src/modules/multisig-transaction/multisig-transaction.service.ts b/src/modules/multisig-transaction/multisig-transaction.service.ts
index 4f57f17f..a02c9f71 100644
--- a/src/modules/multisig-transaction/multisig-transaction.service.ts
+++ b/src/modules/multisig-transaction/multisig-transaction.service.ts
@@ -92,6 +92,24 @@ export class MultisigTransactionService {
     this.useHoroscope = /^true$/i.test(this.configService.get('USE_HOROSCOPE'));
   }
 
+  async getNextSequence(safeId: number) {
+
+    const safe = await this.safeRepos.getSafeById(safeId);
+    // get chain info
+    const chain = await this.chainRepos.findChain(safe.internalChainId);
+
+    // get safe account info
+    const { sequence } = await this.indexerV2.getAccount(
+      chain.chainId,
+      safe.safeAddress,
+    );
+
+    const nextSequence = await this.calculateNextSeq(safeId, sequence)
+    return {
+      nextSequence
+    }
+  }
+
   async createMultisigTransaction(
     request: CreateTransactionRequestDto,
   ): Promise<ResponseDto<CreateTxResDto>> {
@@ -166,17 +184,17 @@ export class MultisigTransactionService {
         // check balance
         await (contractAddress
           ? this.indexerV2.checkCw20Balance(
-              safe.safeAddress,
-              contractAddress,
-              amount,
-              chain.chainId,
-            )
+            safe.safeAddress,
+            contractAddress,
+            amount,
+            chain.chainId,
+          )
           : this.indexerV2.checkTokenBalance(
-              safe.safeAddress,
-              amount,
-              denom,
-              chain.chainId,
-            ));
+            safe.safeAddress,
+            amount,
+            denom,
+            chain.chainId,
+          ));
       }
 
       if (this.useHoroscope && contractAddress) {
@@ -879,19 +897,19 @@ export class MultisigTransactionService {
     const executeTransaction =
       chainInfo.coinDecimals === 18
         ? this.ethermintHelper.makeMultisignedTxEthermint(
-            safePubkey,
-            Number(multisigTransaction.sequence),
-            sendFee,
-            encodedBodyBytes,
-            addressSignatureMap,
-          )
+          safePubkey,
+          Number(multisigTransaction.sequence),
+          sendFee,
+          encodedBodyBytes,
+          addressSignatureMap,
+        )
         : makeMultisignedTx(
-            safePubkey,
-            Number(multisigTransaction.sequence),
-            sendFee,
-            encodedBodyBytes,
-            addressSignatureMap,
-          );
+          safePubkey,
+          Number(multisigTransaction.sequence),
+          sendFee,
+          encodedBodyBytes,
+          addressSignatureMap,
+        );
 
     const encodeTransaction = Uint8Array.from(
       TxRaw.encode(executeTransaction).finish(),
@@ -984,13 +1002,16 @@ export class MultisigTransactionService {
     const queueSequences =
       await this.multisigTransactionRepos.findSequenceInQueue(safeId);
 
-    let nextSeq = currentSequence;
-    for (const seq of queueSequences) {
-      if (seq !== nextSeq) {
+    let estimateSeq = currentSequence;
+    for (const inQueueSeq of queueSequences) {
+      if (inQueueSeq < estimateSeq) {
+        // skip invalid queue tx
+      } else if (inQueueSeq === estimateSeq) {
+        estimateSeq += 1
+      } else {
         break;
       }
-      nextSeq += 1;
     }
-    return nextSeq.toString();
+    return estimateSeq.toString();
   }
 }