diff --git a/jikimo_purchase_request_tier_validation/__init__.py b/jikimo_purchase_request_tier_validation/__init__.py
new file mode 100644
index 00000000..cde864ba
--- /dev/null
+++ b/jikimo_purchase_request_tier_validation/__init__.py
@@ -0,0 +1,3 @@
+# -*- coding: utf-8 -*-
+
+from . import models
diff --git a/jikimo_purchase_request_tier_validation/__manifest__.py b/jikimo_purchase_request_tier_validation/__manifest__.py
new file mode 100644
index 00000000..403297ab
--- /dev/null
+++ b/jikimo_purchase_request_tier_validation/__manifest__.py
@@ -0,0 +1,28 @@
+# -*- coding: utf-8 -*-
+{
+    'name': "机企猫 采购审批流程",
+
+    'summary': """
+        Short (1 phrase/line) summary of the module's purpose, used as
+        subtitle on modules listing or apps.openerp.com""",
+
+    'description': """
+        Long description of module's purpose
+    """,
+
+    'author': "My Company",
+    'website': "https://www.yourcompany.com",
+
+    # Categories can be used to filter modules in modules listing
+    # Check https://github.com/odoo/odoo/blob/16.0/odoo/addons/base/data/ir_module_category_data.xml
+    # for the full list
+    'category': 'Uncategorized',
+    'version': '0.1',
+
+    # any module necessary for this one to work correctly
+    'depends': ['purchase_request_tier_validation'],
+
+    # always loaded
+    'data': [
+    ],
+}
diff --git a/jikimo_purchase_request_tier_validation/models/__init__.py b/jikimo_purchase_request_tier_validation/models/__init__.py
new file mode 100644
index 00000000..5305644d
--- /dev/null
+++ b/jikimo_purchase_request_tier_validation/models/__init__.py
@@ -0,0 +1,3 @@
+# -*- coding: utf-8 -*-
+
+from . import models
\ No newline at end of file
diff --git a/jikimo_purchase_request_tier_validation/models/models.py b/jikimo_purchase_request_tier_validation/models/models.py
new file mode 100644
index 00000000..4d8e9b3d
--- /dev/null
+++ b/jikimo_purchase_request_tier_validation/models/models.py
@@ -0,0 +1,24 @@
+from odoo import models, fields, api, _
+from odoo.exceptions import ValidationError
+import logging
+
+_logger = logging.getLogger(__name__)
+
+
+class PurchaseRequestTierValidation(models.Model):
+    _name = 'purchase.request.tier.validation'
+    
+
+    def _validate_tier(self, tiers=False):
+        res = super(PurchaseRequestTierValidation, self)._validate_tier(tiers)
+
+        # 检查是否所有审批都已通过
+        all_approved = all(
+            tier_review.status == 'approved'
+            for tier_review in self.review_ids
+        )
+
+        if self.review_ids and all_approved:  # 确保有审批记录
+            self.state = 'approved'
+
+        return res
diff --git a/sf_manufacturing/models/purchase_order.py b/sf_manufacturing/models/purchase_order.py
index 5ee7d8f2..044b68e1 100644
--- a/sf_manufacturing/models/purchase_order.py
+++ b/sf_manufacturing/models/purchase_order.py
@@ -59,15 +59,14 @@ class PurchaseOrder(models.Model):
             production_id = self.env['mrp.production'].search([('origin', 'in', origins)])
             purchase.production_count = len(production_id)
 
-    def write(self, vals):
-        res = super(PurchaseOrder, self).write(vals)
+    def button_confirm(self):
         for record in self:
             for line in record.order_line:
                 if line.product_qty <= 0:
                     raise UserError('请对【产品】中的【数量】进行输入')
                 if line.price_unit <= 0:
                     raise UserError('请对【产品】中的【单价】进行输入')
-        return res
+        return super(PurchaseOrder, self).button_confirm()
     
 
     origin_sale_id = fields.Many2one('sale.order', string='销售订单号', store=True, compute='_compute_origin_sale_id')