The objectives of this specific study are: - To understand the situation of some vegetables areas supplying Hanoi, - To describe the flows supplying Hanoi vegetable market, - To understand the roles and relationships of the stakeholders of the commodity chains supplying Hanoi vegetable market, - To understand the advantages and constraints of each stakeholder. The study focuses on 4 product flows from 4 different supplying regions: - The safe vegetable flow from Dong Anh - the main safe vegetable supplier of supermarkets, stores of state-owned and private companies, canteens of schools and kindergardens. - The normal vegetable flow from Me Linh - the important vegetable supplier of Dich Vong wholesale market. - The vegetable flow from Gia lam- the main vegetable supplier of Bac Qua-Long Bien wholesale market. - The vegetable flow from Thanh Tri - the main vegetable supplier of Mo and Nga Tu So market. The relation between the producing areas and markets depends on the distance from producing region to markets, and the strategies as regards quality management. The safe vegetable channel is characterised by close relationship between stakeholders. The retailers are the stakeholders regulating the chain. They inform the stakeholders upstream the chain about the demands of the market and induce them to widen their scale in order to be more efficient. The biggest limit of this flow is that consumers have little confidence in the product quality. The demand for safe vegetables is increasing but producers cannot find regular outlets for their safe vegetables. In the normal vegetable flows, the assignment of the different actors is relatively clear; however, in almost all the three flows, the relationships among them are very loose as illustrated by the commodity chain from Me Linh to Hanoi. The participation of the farmers in the market is relatively frequent, especially for farmers from Thanh Tri and Gia Lam. The irregular involvement of many farmers in the market makes t