diff --git a/.github/scripts/generate-coverage-badge.sh b/.github/scripts/generate-coverage-badge.sh
deleted file mode 100644
index 120dde48..00000000
--- a/.github/scripts/generate-coverage-badge.sh
+++ /dev/null
@@ -1,55 +0,0 @@
-#!/bin/bash
-
-set -e
-
-REPORT_FILE="build/reports/jacoco/test/jacocoTestReport.xml"
-BADGE_FILE="badges/coverage.svg"
-
-mkdir -p badges
-
-if [ ! -f "$REPORT_FILE" ]; then
-  echo "❌ Report not found: $REPORT_FILE"
-  exit 1
-fi
-
-# awk로 missed, covered 값 추출
-read missed covered < <(awk -F'"' '/<counter type="LINE"/ {print $4, $6}' "$REPORT_FILE")
-
-total=$((missed + covered))
-percent=$(awk "BEGIN { printf \"%.2f\", ($covered / $total) * 100 }")
-
-# 색상 결정
-if (( $(echo "$percent >= 90" | bc -l) )); then
-  color="4c1" # brightgreen
-elif (( $(echo "$percent >= 75" | bc -l) )); then
-  color="dfb317" # yellow
-else
-  color="e05d44" # red
-fi
-
-# SVG badge 생성
-cat > "$BADGE_FILE" <<EOF
-<svg xmlns="http://www.w3.org/2000/svg" width="130" height="20">
-  <linearGradient id="b" x2="0" y2="100%">
-    <stop offset="0" stop-color="#eee" stop-opacity=".7"/>
-    <stop offset="1" stop-opacity=".7"/>
-  </linearGradient>
-  <mask id="a">
-    <rect width="130" height="20" rx="3" fill="#fff"/>
-  </mask>
-  <g mask="url(#a)">
-    <rect width="75" height="20" fill="#555"/>
-    <rect x="75" width="55" height="20" fill="#$color"/>
-    <rect width="130" height="20" fill="url(#b)"/>
-  </g>
-  <g fill="#fff" text-anchor="middle"
-      font-family="DejaVu Sans,Verdana,Geneva,sans-serif" font-size="11">
-    <text x="37.5" y="15" fill="#010101" fill-opacity=".3">coverage</text>
-    <text x="37.5" y="14">coverage</text>
-    <text x="101.5" y="15" fill="#010101" fill-opacity=".3">${percent}%</text>
-    <text x="101.5" y="14">${percent}%</text>
-  </g>
-</svg>
-EOF
-
-echo "✅ Coverage badge generated: ${percent}% -> $BADGE_FILE"
diff --git a/.github/workflows/pr-ci.yml b/.github/workflows/pr-ci.yml
index 0d8b6c67..32420189 100644
--- a/.github/workflows/pr-ci.yml
+++ b/.github/workflows/pr-ci.yml
@@ -11,7 +11,7 @@ permissions:
 
 jobs:
   build-and-test:
-    name: Build, Test, and Coverage
+    name: Build, Test, and Upload Coverage
     runs-on: ubuntu-latest
 
     steps:
@@ -42,17 +42,23 @@ jobs:
           name: coverage-report
           path: build/reports/jacoco/test/html/
 
+      - name: Upload JaCoCo report to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }} # public repo라면 생략 가능
+          files: build/reports/jacoco/test/jacocoTestReport.xml
+          fail_ci_if_error: true
+          flags: unittests
+          verbose: true
+
       - name: Extract JaCoCo Coverage Percentage
         id: coverage
         run: |
           xml_file="build/reports/jacoco/test/jacocoTestReport.xml"
-          
           missed=$(awk -F'"' '/<counter type="LINE"/ {print $4}' "$xml_file")
           covered=$(awk -F'"' '/<counter type="LINE"/ {print $6}' "$xml_file")
-          
           total=$((missed + covered))
           percent=$(awk "BEGIN { printf \"%.2f\", ($covered / $total) * 100 }")
-          
           echo "COVERAGE=$percent" >> "$GITHUB_OUTPUT"
 
       - name: Comment PR with Test and Coverage Result
@@ -65,23 +71,13 @@ jobs:
             **Build:** ${{ job.status }}
 
             🧪 테스트 실행 with Gradle  
-            📈 **Coverage:** `${{ steps.jacoco.outputs.COVERAGE }}%`
+            📈 **Coverage:** `${{ steps.coverage.outputs.COVERAGE }}%`
 
-            📁 [Test Report](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }})
-            📁 [Coverage Report (HTML)](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }})
+            📁 [테스트 결과](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }})
+            📁 [커버리지 보고서 (HTML)](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }})
 
       - name: Fail PR if tests fail
         if: failure()
         run: |
           echo "❌ Tests failed. Please fix them before merging."
           exit 1
-      - name: Generate Coverage Badge
-        run: |
-          chmod +x .github/scripts/generate-coverage-badge.sh
-          .github/scripts/generate-coverage-badge.sh
-
-      - name: Commit & Push Coverage Badge
-        uses: stefanzweifel/git-auto-commit-action@v5
-        with:
-          commit_message: "chore: update coverage badge"
-          file_pattern: badges/coverage.svg
diff --git a/README.md b/README.md
index 38c69c77..3b6fe034 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # 🎮 마비노기 경매장 거래 내역 조회 및 통계 서비스 
 
-![Coverage](https://github.com/devnogi/open-api-batch-server/dev/badges/coverage.svg)
+[![codecov](https://codecov.io/gh/devnogi/open-api-batch-server/branch/dev/graph/badge.svg)](https://codecov.io/gh/devnogi/open-api-batch-server)
 [![License](https://img.shields.io/github/license/devnogi/open-api-batch-server)](LICENSE)
 [![Last Commit](https://img.shields.io/github/last-commit/devnogi/open-api-batch-server)](https://github.com/devnogi/open-api-batch-server)