1. Different procurement subjects: The Education Bureau is the competent department of the school, responsible for managing and supervising the procurement activities of the school; The school is the specific procurement subject, responsible for the implementation of procurement activities.

2. The procurement process is different: the procurement process of the Education Bureau usually needs to go through a series of links such as examination and approval, budgeting and bidding to ensure fairness, transparency and compliance; The procurement process of the school may be relatively simplified, and it needs to go through application, approval, procurement planning and implementation to ensure the rationality and efficiency of procurement.