diff --git a/backend/pirocheck/.gitignore b/backend/pirocheck/.gitignore
index c2065bc..768f475 100644
--- a/backend/pirocheck/.gitignore
+++ b/backend/pirocheck/.gitignore
@@ -35,3 +35,6 @@ out/
 
 ### VS Code ###
 .vscode/
+
+### 환경 변수 ###
+.env
\ No newline at end of file
diff --git a/backend/pirocheck/build.gradle b/backend/pirocheck/build.gradle
index d57d42b..db75dba 100644
--- a/backend/pirocheck/build.gradle
+++ b/backend/pirocheck/build.gradle
@@ -29,6 +29,21 @@ dependencies {
     annotationProcessor 'org.projectlombok:lombok'
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
     testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+
+    // REST API 사용을 위해 반드시 필요
+    implementation 'org.springframework.boot:spring-boot-starter-web'
+
+    // DTO에서 @Valid 사용 시 필요
+    implementation 'org.springframework.boot:spring-boot-starter-validation'
+
+    // PostgreSQL
+    runtimeOnly 'org.postgresql:postgresql'
+
+    // 환경변수 관리
+    implementation 'io.github.cdimascio:java-dotenv:5.2.2'
+
+    // Swagger
+    implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.8.6'
 }
 
 tasks.named('test') {
diff --git a/backend/pirocheck/src/main/java/backend/pirocheck/PirocheckApplication.java b/backend/pirocheck/src/main/java/backend/pirocheck/PirocheckApplication.java
index 96ad2c4..b7e39e5 100644
--- a/backend/pirocheck/src/main/java/backend/pirocheck/PirocheckApplication.java
+++ b/backend/pirocheck/src/main/java/backend/pirocheck/PirocheckApplication.java
@@ -2,11 +2,23 @@
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.github.cdimascio.dotenv.Dotenv;
 
 @SpringBootApplication
 public class PirocheckApplication {
 
     public static void main(String[] args) {
+
+        // .env 파일 로드
+        Dotenv dotenv = Dotenv.configure()
+                .directory("./") // .env 파일 경로 설정 (기본: 프로젝트 루트)
+                .load();
+
+        // 환경변수를 시스템 프로퍼티에 추가
+        dotenv.entries().forEach(entry ->
+                System.setProperty(entry.getKey(), entry.getValue())
+        );
+
         SpringApplication.run(PirocheckApplication.class, args);
     }
 
diff --git a/backend/pirocheck/src/main/resources/application.properties b/backend/pirocheck/src/main/resources/application.properties
deleted file mode 100644
index 5aa603d..0000000
--- a/backend/pirocheck/src/main/resources/application.properties
+++ /dev/null
@@ -1 +0,0 @@
-spring.application.name=pirocheck
diff --git a/backend/pirocheck/src/main/resources/application.yml b/backend/pirocheck/src/main/resources/application.yml
new file mode 100644
index 0000000..656f19b
--- /dev/null
+++ b/backend/pirocheck/src/main/resources/application.yml
@@ -0,0 +1,12 @@
+spring:
+  datasource:
+    url: jdbc:postgresql://${DB_HOST}:${DB_PORT}/${DB_NAME}
+    username: ${DB_USER}
+    password: ${DB_PASSWORD}
+  jpa:
+    hibernate:
+      ddl-auto: update
+    show-sql: true
+    properties:
+      hibernate:
+        format_sql: true
\ No newline at end of file