diff --git a/erp/approval_profit.go b/oa/approval_profit.go
similarity index 97%
rename from erp/approval_profit.go
rename to oa/approval_profit.go
index 8574946..3eee178 100644
--- a/erp/approval_profit.go
+++ b/oa/approval_profit.go
@@ -1,4 +1,4 @@
-package erp
+package oa
 
 import (
 	"errors"
@@ -24,12 +24,12 @@ type ApprovalProfitCreate struct {
 }
 
 type ApprovalProfit struct {
-	Erp
+	OA
 }
 
 func NewApprovalProfit(baseUrl, token string) *ApprovalProfit {
 	return &ApprovalProfit{
-		Erp: Erp{
+		OA: OA{
 			baseUrl: baseUrl,
 			token:   token,
 		},
diff --git a/erp/erp.go b/oa/oa.go
similarity index 60%
rename from erp/erp.go
rename to oa/oa.go
index ad9767b..f691266 100644
--- a/erp/erp.go
+++ b/oa/oa.go
@@ -1,17 +1,17 @@
-package erp
+package oa
 
-type Erp struct {
+type OA struct {
 	token   string
 	baseUrl string
 }
 
-func (e *Erp) GetHeader() map[string]string {
+func (e *OA) GetHeader() map[string]string {
 	return map[string]string{
 		"x-token": e.token,
 	}
 }
 
-func (e *Erp) GetBaseUrl() string {
+func (e *OA) GetBaseUrl() string {
 	if e.baseUrl != "" {
 		return e.baseUrl
 	}
diff --git a/erp/staff_score.go b/oa/staff_score.go
similarity index 96%
rename from erp/staff_score.go
rename to oa/staff_score.go
index 3427bb5..69ff3e7 100644
--- a/erp/staff_score.go
+++ b/oa/staff_score.go
@@ -1,4 +1,4 @@
-package erp
+package oa
 
 import (
 	"errors"
@@ -8,7 +8,7 @@ import (
 )
 
 type StaffScore struct {
-	Erp
+	OA
 }
 
 type StaffScoreCreate struct {
@@ -21,7 +21,7 @@ type StaffScoreCreate struct {
 
 func NewStaffScore(baseUrl, token string) *StaffScore {
 	return &StaffScore{
-		Erp: Erp{
+		OA: OA{
 			baseUrl: baseUrl,
 			token:   token,
 		},
diff --git a/erp/staff_user.go b/oa/staff_user.go
similarity index 98%
rename from erp/staff_user.go
rename to oa/staff_user.go
index a23d276..4bbadd0 100644
--- a/erp/staff_user.go
+++ b/oa/staff_user.go
@@ -1,4 +1,4 @@
-package erp
+package oa
 
 import (
 	"errors"
@@ -36,12 +36,12 @@ type UpdateReq struct {
 }
 
 type StaffUser struct {
-	Erp
+	OA
 }
 
 func NewStaffUser(baseUrl, token string) *StaffUser {
 	return &StaffUser{
-		Erp: Erp{
+		OA: OA{
 			baseUrl: baseUrl,
 			token:   token,
 		},