diff --git a/package.json b/package.json
index a22f76a..f387287 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@onekeyfe/coinselect",
-  "version": "3.1.16",
+  "version": "3.1.17",
   "description": "A transaction input selection module for bitcoin.",
   "keywords": [
     "coinselect",
diff --git a/test/fixtures/witness.js b/test/fixtures/witness.js
index 0f9d083..103dbc7 100644
--- a/test/fixtures/witness.js
+++ b/test/fixtures/witness.js
@@ -508,6 +508,290 @@ const fixtures = [
       outputsPermutation: [0, 1]
     },
     shouldThrow: false
+  },
+  {
+    description: 'sortingStrategy none - preserves original input/output order',
+    feeRate: 10,
+    sortingStrategy: 'none',
+    inputs: [
+      {
+        txId: 'bbbb_second_in_bip69',
+        vout: 0,
+        value: 5000,
+        amount: '5000',
+        confirmations: 200,
+        own: true,
+        coinbase: false,
+        address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+        path: "m/84'/1'/0'/0/0",
+        required: true
+      },
+      {
+        txId: 'aaaa_first_in_bip69',
+        vout: 0,
+        value: 3000,
+        amount: '3000',
+        confirmations: 300,
+        own: true,
+        coinbase: false,
+        address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+        path: "m/84'/1'/0'/0/1",
+        required: true
+      }
+    ],
+    outputs: [
+      {
+        type: 'payment',
+        address: 'tb1quawu6eyfuechu3qhdeejnrzne9y7shr08u8zzt',
+        value: 1000,
+        amount: '1000'
+      }
+    ],
+    network: testnet,
+    changeAddress: {
+      address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+      path: "m/84'/1'/0'/0/0"
+    },
+    txType: 'p2wpkh',
+    expected: {
+      type: 'final',
+      fee: '2090',
+      feePerByte: '10',
+      bytes: 209,
+      max: undefined,
+      totalSpent: '3090',
+      inputs: [
+        {
+          txId: 'bbbb_second_in_bip69',
+          vout: 0,
+          value: 5000,
+          confirmations: 200,
+          own: true,
+          address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+          path: "m/84'/1'/0'/0/0",
+          coinbase: false,
+          amount: '5000',
+          required: true
+        },
+        {
+          txId: 'aaaa_first_in_bip69',
+          vout: 0,
+          value: 3000,
+          confirmations: 300,
+          own: true,
+          address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+          path: "m/84'/1'/0'/0/1",
+          coinbase: false,
+          amount: '3000',
+          required: true
+        }
+      ],
+      outputs: [
+        {
+          type: 'payment',
+          address: 'tb1quawu6eyfuechu3qhdeejnrzne9y7shr08u8zzt',
+          value: 1000,
+          amount: '1000'
+        },
+        {
+          type: 'change',
+          address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+          path: "m/84'/1'/0'/0/0",
+          amount: '4910'
+        }
+      ],
+      outputsPermutation: [0, 1]
+    },
+    shouldThrow: false
+  },
+  {
+    description: 'sortingStrategy bip69 - sorts inputs by txid and outputs by value',
+    feeRate: 10,
+    sortingStrategy: 'bip69',
+    inputs: [
+      {
+        txid: 'bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',
+        vout: 0,
+        value: 5000,
+        amount: '5000',
+        confirmations: 200,
+        own: true,
+        coinbase: false,
+        address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+        path: "m/84'/1'/0'/0/0",
+        required: true
+      },
+      {
+        txid: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa',
+        vout: 0,
+        value: 3000,
+        amount: '3000',
+        confirmations: 300,
+        own: true,
+        coinbase: false,
+        address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+        path: "m/84'/1'/0'/0/1",
+        required: true
+      }
+    ],
+    outputs: [
+      {
+        type: 'payment',
+        address: 'tb1quawu6eyfuechu3qhdeejnrzne9y7shr08u8zzt',
+        value: 1000,
+        amount: '1000'
+      }
+    ],
+    network: testnet,
+    changeAddress: {
+      address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+      path: "m/84'/1'/0'/0/0"
+    },
+    txType: 'p2wpkh',
+    expected: {
+      type: 'final',
+      fee: '2090',
+      feePerByte: '10',
+      bytes: 209,
+      max: undefined,
+      totalSpent: '3090',
+      inputs: [
+        {
+          txid: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa',
+          vout: 0,
+          value: 3000,
+          confirmations: 300,
+          own: true,
+          address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+          path: "m/84'/1'/0'/0/1",
+          coinbase: false,
+          amount: '3000',
+          required: true
+        },
+        {
+          txid: 'bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',
+          vout: 0,
+          value: 5000,
+          confirmations: 200,
+          own: true,
+          address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+          path: "m/84'/1'/0'/0/0",
+          coinbase: false,
+          amount: '5000',
+          required: true
+        }
+      ],
+      outputs: [
+        {
+          type: 'payment',
+          address: 'tb1quawu6eyfuechu3qhdeejnrzne9y7shr08u8zzt',
+          value: 1000,
+          amount: '1000'
+        },
+        {
+          type: 'change',
+          address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+          path: "m/84'/1'/0'/0/0",
+          amount: '4910'
+        }
+      ],
+      outputsPermutation: [0, 1]
+    },
+    shouldThrow: false
+  },
+  {
+    description: 'sortingStrategy random (default) - produces valid result with shuffled order',
+    feeRate: 10,
+    inputs: [
+      {
+        txId: 'bbbb_second_in_bip69',
+        vout: 0,
+        value: 5000,
+        amount: '5000',
+        confirmations: 200,
+        own: true,
+        coinbase: false,
+        address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+        path: "m/84'/1'/0'/0/0",
+        required: true
+      },
+      {
+        txId: 'aaaa_first_in_bip69',
+        vout: 0,
+        value: 3000,
+        amount: '3000',
+        confirmations: 300,
+        own: true,
+        coinbase: false,
+        address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+        path: "m/84'/1'/0'/0/1",
+        required: true
+      }
+    ],
+    outputs: [
+      {
+        type: 'payment',
+        address: 'tb1quawu6eyfuechu3qhdeejnrzne9y7shr08u8zzt',
+        value: 1000,
+        amount: '1000'
+      }
+    ],
+    network: testnet,
+    changeAddress: {
+      address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+      path: "m/84'/1'/0'/0/0"
+    },
+    txType: 'p2wpkh',
+    expected: {
+      type: 'final',
+      fee: '2090',
+      feePerByte: '10',
+      bytes: 209,
+      max: undefined,
+      totalSpent: '3090',
+      inputs: [
+        {
+          txId: 'bbbb_second_in_bip69',
+          vout: 0,
+          value: 5000,
+          confirmations: 200,
+          own: true,
+          address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+          path: "m/84'/1'/0'/0/0",
+          coinbase: false,
+          amount: '5000',
+          required: true
+        },
+        {
+          txId: 'aaaa_first_in_bip69',
+          vout: 0,
+          value: 3000,
+          confirmations: 300,
+          own: true,
+          address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+          path: "m/84'/1'/0'/0/1",
+          coinbase: false,
+          amount: '3000',
+          required: true
+        }
+      ],
+      outputs: [
+        {
+          type: 'payment',
+          address: 'tb1quawu6eyfuechu3qhdeejnrzne9y7shr08u8zzt',
+          value: 1000,
+          amount: '1000'
+        },
+        {
+          type: 'change',
+          address: 'tb1qul5mzh5phe7xqyqek0nl42hflfrn7ugxck59jd',
+          path: "m/84'/1'/0'/0/0",
+          amount: '4910'
+        }
+      ],
+      outputsPermutation: [0, 1]
+    },
+    shouldThrow: false
   }
 ]
 
diff --git a/test/witness.js b/test/witness.js
index 859fcf1..1c79cc0 100644
--- a/test/witness.js
+++ b/test/witness.js
@@ -25,7 +25,8 @@ fixtures.forEach(function (f) {
         feeRate: f.feeRate,
         network: f.network,
         changeAddress: f.changeAddress,
-        txType: f.txType
+        txType: f.txType,
+        sortingStrategy: f.sortingStrategy
       })
 
       const compareOutputs = (actual, expected) => {
@@ -63,6 +64,19 @@ fixtures.forEach(function (f) {
       t.same(actual.totalSpent, f.expected.totalSpent)
       t.ok(compareOutputs(actual.inputs, f.expected.inputs), 'inputs are the same')
       t.ok(compareOutputs(actual.outputs, f.expected.outputs), 'outputs are the same')
+
+      // For deterministic strategies, also verify ordering
+      if (f.sortingStrategy === 'none' || f.sortingStrategy === 'bip69') {
+        var txIdKey = f.sortingStrategy === 'bip69' ? 'txid' : 'txId'
+        t.same(
+          actual.inputs.map(function (i) { return i[txIdKey] }),
+          f.expected.inputs.map(function (i) { return i[txIdKey] }),
+          'input order matches expected for ' + f.sortingStrategy + ' strategy'
+        )
+        t.same(actual.outputsPermutation, f.expected.outputsPermutation,
+          'outputsPermutation matches for ' + f.sortingStrategy + ' strategy')
+      }
+
       t.end()
     }
   })
diff --git a/witness.d.ts b/witness.d.ts
index 32e0a1f..d31227d 100644
--- a/witness.d.ts
+++ b/witness.d.ts
@@ -51,6 +51,7 @@ export interface ICoinSelectParams {
     txType: IPaymentType
     baseFee?: number;
     dustThreshold?: number;
+    sortingStrategy?: 'bip69' | 'none' | 'random';
 }
 
 export interface ICoinSelectResult {
diff --git a/witness.js b/witness.js
index 52d622d..c330502 100644
--- a/witness.js
+++ b/witness.js
@@ -8,13 +8,14 @@ module.exports = function coinSelect ({
   network,
   txType,
   baseFee = 0,
-  dustThreshold = 546
+  dustThreshold = 546,
+  sortingStrategy = 'random'
 }) {
   const result = composeTx({
     utxos,
     outputs,
     feeRate,
-    sortingStrategy: 'random',
+    sortingStrategy,
     txType,
     dustThreshold,
     changeAddress,