On the basis of defining the concept of market access for agricultural products, this paper analyzes the necessity of establishing market access system of agricultural products, proposes the conception of establishing market access system of agricultural products in China; sets up the frame of market access system of agricultural products; analyzes the rationality of the frame of market access system of agricultural products; poses the consideration of economic law regarding setup of market access system of agricultural products. This paper also puts forward the legislative suggestions for establishing market access system of agricultural products as follows: establish the frame of market access system of agricultural products taking quality access as core; establish and perfect the compensation and relief system of guaranteeing benefit of manager and producers; establish the market access system of agricultural products with hierarchical structure; sort out existing laws and form the sound the legal frame of market access system of agricultural products.