diff --git a/internal/infrastructure/bootstrap/config_log.go b/internal/infrastructure/bootstrap/config_log.go
new file mode 100644
index 0000000..17ceb0e
--- /dev/null
+++ b/internal/infrastructure/bootstrap/config_log.go
@@ -0,0 +1,45 @@
+package bootstrap
+
+import (
+	"log/slog"
+)
+
+// logConfig logs the key configuration values when the server starts.
+// Sensitive values like passwords and secrets are not logged.
+func logConfig() {
+	slog.Info("Configuration loaded",
+		"mode", mode,
+		"log.level", config.GetString(configKeyLogLevel),
+		"log.format", config.GetString(configKeyLogFormat),
+	)
+
+	// Log server configuration based on the command
+	switch cmdName {
+	case "grpc":
+		logGRPCConfig()
+	case "gateway":
+		logGatewayConfig()
+	}
+}
+
+func logGRPCConfig() {
+	slog.Info("gRPC server configuration",
+		"grpc_port", config.GetUint("grpc_port"),
+		"persistence.type", config.GetString("persistence.type"),
+		"persistence.gorm.driver", config.GetString("persistence.gorm.driver"),
+		"persistence.gorm.dbname", config.GetString("persistence.gorm.dbname"),
+		"redis.urls", config.GetStringSlice("redis.urls"),
+		"smtp_mailer.host", config.GetString("smtp_mailer.host"),
+		"smtp_mailer.port", config.GetInt("smtp_mailer.port"),
+		"auth.oauth_state_expiration", config.GetString("auth.oauth_state_expiration"),
+		"auth.access_token_expiration", config.GetString("auth.access_token_expiration"),
+		"auth.refresh_token_expiration", config.GetString("auth.refresh_token_expiration"),
+		"auth.token_issuer", config.GetString("auth.token_issuer"),
+	)
+}
+
+func logGatewayConfig() {
+	slog.Info("Gateway server configuration",
+		"http_port", config.GetUint("http_port"),
+	)
+}
diff --git a/internal/infrastructure/bootstrap/init.go b/internal/infrastructure/bootstrap/init.go
index af58df2..e39681d 100644
--- a/internal/infrastructure/bootstrap/init.go
+++ b/internal/infrastructure/bootstrap/init.go
@@ -27,6 +27,7 @@ func Init(cmd string) {
 	workdir, _ := os.Getwd()
 	initConfig(path.Join(workdir, "configs"))
 	initLog()
+	logConfig()
 	slog.Info("APP initialized")
 }
 
@@ -39,5 +40,6 @@ func InitWithConfigPath(cmd string, configPath string) {
 	}
 	initConfig(configPath)
 	initLog()
+	logConfig()
 	slog.Info("APP initialized")
 }