diff --git a/packages/neuron-wallet/src/utils/shannonToCKB.ts b/packages/neuron-wallet/src/utils/shannonToCKB.ts
deleted file mode 100644
index 82c1a01871..0000000000
--- a/packages/neuron-wallet/src/utils/shannonToCKB.ts
+++ /dev/null
@@ -1,18 +0,0 @@
-const DECIMAL = 8
-
-const shannonToCKB = (shannon: bigint) => {
-  if (shannon === BigInt(0)) {
-    return `+0.${'0'.repeat(DECIMAL)}`
-  }
-
-  const isNegative = shannon < 0
-  const absStr = isNegative ? `${shannon}`.slice(1) : `${shannon}`
-  if (absStr.length <= DECIMAL) {
-    return `${isNegative ? '-' : '+'}0.${absStr.padStart(DECIMAL, '0')}`
-  }
-  const int = absStr.slice(0, -1 * DECIMAL)
-  const dec = absStr.slice(-1 * DECIMAL)
-  return `${isNegative ? '-' : '+'}${int}.${dec}`
-}
-
-export default shannonToCKB
diff --git a/packages/neuron-wallet/src/utils/to-csv-row.ts b/packages/neuron-wallet/src/utils/to-csv-row.ts
index ce3d32e842..be58299716 100644
--- a/packages/neuron-wallet/src/utils/to-csv-row.ts
+++ b/packages/neuron-wallet/src/utils/to-csv-row.ts
@@ -1,5 +1,5 @@
 import { t } from 'i18next'
-import shannonToCKB from '../utils/shannonToCKB'
+import { BIish, formatUnit, ckbDecimals } from '@ckb-lumos/bi'
 import sudtValueToAmount from '../utils/sudt-value-to-amount'
 import Transaction from '../models/chain/transaction'
 import { DEFAULT_UDT_SYMBOL } from '../utils/const'
@@ -9,6 +9,15 @@ export const formatDatetime = (datetime: Date) => {
   return `${isoFmt.substr(0, 10)} ${isoFmt.substr(11, 12)}`
 }
 
+export const formatAmount = (value: BIish) => {
+  return new Intl.NumberFormat('en-US', {
+    useGrouping: false,
+    signDisplay: 'always',
+    minimumFractionDigits: ckbDecimals,
+    maximumFractionDigits: ckbDecimals,
+  }).format(formatUnit(value, 'ckb') as any)
+}
+
 const toCSVRow = (
   tx: Pick<
     Transaction,
@@ -41,7 +50,7 @@ const toCSVRow = (
       txType = +tx.sudtInfo.amount <= 0 ? `UDT ${SEND_TYPE}` : `UDT ${RECEIVE_TYPE}`
     }
   } else {
-    amount = shannonToCKB(BigInt(tx.value ?? ''))
+    amount = formatAmount(BigInt(tx.value ?? '0'))
     if (tx.nervosDao) {
       txType = `Nervos DAO`
     } else if (['create', 'destroy'].includes(tx.type || '')) {
diff --git a/packages/neuron-wallet/tests/utils/shannonToCKB.test.ts b/packages/neuron-wallet/tests/utils/shannonToCKB.test.ts
deleted file mode 100644
index 0f7eb6d8ad..0000000000
--- a/packages/neuron-wallet/tests/utils/shannonToCKB.test.ts
+++ /dev/null
@@ -1,48 +0,0 @@
-import shannonToCKB from '../../src/utils/shannonToCKB'
-
-const fixtures: { shannon: bigint; expected: string }[] = [
-  {
-    shannon: BigInt(0),
-    expected: '+0.00000000',
-  },
-  {
-    shannon: BigInt(1234567),
-    expected: '+0.01234567',
-  },
-  {
-    shannon: BigInt(-1234567),
-    expected: '-0.01234567',
-  },
-  {
-    shannon: BigInt(12345678),
-    expected: '+0.12345678',
-  },
-  {
-    shannon: BigInt(-12345678),
-    expected: '-0.12345678',
-  },
-  {
-    shannon: BigInt(123456789),
-    expected: '+1.23456789',
-  },
-  {
-    shannon: BigInt(-123456789),
-    expected: '-1.23456789',
-  },
-  {
-    shannon: BigInt(12345678900000000),
-    expected: '+123456789.00000000',
-  },
-  {
-    shannon: BigInt(-12345678900000000),
-    expected: '-123456789.00000000',
-  },
-]
-
-describe('Test Shannon To CKB', () => {
-  const fixtureTable: [bigint, string][] = fixtures.map(fixture => [fixture.shannon, fixture.expected])
-  test.each(fixtureTable)(`%s shannon => %s CKB`, (shannon, expected) => {
-    const actual = shannonToCKB(shannon)
-    expect(actual).toBe(expected)
-  })
-})
diff --git a/packages/neuron-wallet/tests/utils/to-csv-row/fixtures.json b/packages/neuron-wallet/tests/utils/to-csv-row/fixtures.json
index 9cad69bfe1..ad1b9872aa 100644
--- a/packages/neuron-wallet/tests/utils/to-csv-row/fixtures.json
+++ b/packages/neuron-wallet/tests/utils/to-csv-row/fixtures.json
@@ -35,11 +35,11 @@
         "timestamp": "1591954855123",
         "blockNumber": "0",
         "nervosDao": false,
-        "value": "-900000000",
+        "value": "-12345678",
         "description": "description"
       }
     },
-    "expected": "2020-06-12 09:40:55.123,0,hash,Send,-9.00000000,,\"description\"\n"
+    "expected": "2020-06-12 09:40:55.123,0,hash,Send,-0.12345678,,\"description\"\n"
   },
   "Nervos DAO": {
     "data": {
@@ -49,11 +49,11 @@
         "timestamp": "1591954855123",
         "blockNumber": "0",
         "nervosDao": true,
-        "value": "-900000000",
+        "value": "-123456789",
         "description": "description"
       }
     },
-    "expected": "2020-06-12 09:40:55.123,0,hash,Nervos DAO,-9.00000000,,\"description\"\n"
+    "expected": "2020-06-12 09:40:55.123,0,hash,Nervos DAO,-1.23456789,,\"description\"\n"
   },
   "Receive unknown UDT": {
     "data": {
@@ -251,11 +251,11 @@
         "timestamp": "1591954855123",
         "blockNumber": "0",
         "nervosDao": false,
-        "value": "-900000000",
+        "value": "12345678900000000",
         "description": "description"
       }
     },
-    "expected": "2020-06-12 09:40:55.123,0,hash,Create CKB Asset Account,-9.00000000,,\"description\"\n"
+    "expected": "2020-06-12 09:40:55.123,0,hash,Create CKB Asset Account,+123456789.00000000,,\"description\"\n"
   },
   "Destroy CKB Asset Account": {
     "data": {
@@ -265,10 +265,10 @@
         "timestamp": "1591954855123",
         "blockNumber": "0",
         "nervosDao": false,
-        "value": "-900000000",
+        "value": "-12345678900000000",
         "description": "description"
       }
     },
-    "expected": "2020-06-12 09:40:55.123,0,hash,Destroy CKB Asset Account,-9.00000000,,\"description\"\n"
+    "expected": "2020-06-12 09:40:55.123,0,hash,Destroy CKB Asset Account,-123456789.00000000,,\"description\"\n"
   }
 }