diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.py b/erpnext/buying/doctype/purchase_order/purchase_order.py
index 8d6ba46..91cc865 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.py
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.py
@@ -45,6 +45,7 @@
 
 		self.validate_with_previous_doc()
 		self.validate_for_subcontracting()
+		self.validate_minimum_order_qty()
 		self.create_raw_materials_supplied("po_raw_material_details")
 
 	def validate_with_previous_doc(self):
@@ -61,6 +62,13 @@
 			}
 		})
 
+	def validate_minimum_order_qty(self):
+		itemwise_min_order_qty = frappe._dict(frappe.db.sql("select name, min_order_qty from tabItem"))
+
+		for d in self.get("po_details"):
+			if flt(d.qty) < flt(itemwise_min_order_qty.get(d.item_code)):
+				frappe.throw(_("Row #{0}: Ordered qty can not less than item's minimum order qty (defined in item master).").format(d.idx))
+
 	def get_schedule_dates(self):
 		for d in self.get('po_details'):
 			if d.prevdoc_detail_docname and not d.schedule_date: