Overall objective: The main objective of research on vegetable marketing in Laos is to help harmonize vegetable production with the market demand in terms of quantity, quality, and price. Review of available data: First a review of existing data was carried out, especially the JICA and FAO studies on food marketing in Laos. The studies point out the importance of Vientiane plain for fruits and vegetables in addition to Boloven Plateau (Champassak province) which mostly provides cabbage and potato. The three major food markets are: Tong Kan Kham, That Luang and Kua Dim; they operate both as wholesale and retail markets. Market traders usually combine a variety of functions and specialized wholesalers are few. Objective of market survey: Two surveys were organised to gain additional information. The first one, investigation of market flows and chains (activity 1) aims at appraising how the market is organised spatially and in terms of functions and to quantify the supply from the different districts/villages and imports. The second one, appraisal of traders¿ strategies, aims at: (i) finding out the structure of the market (competition) and coordination relationships among the different actors; (ii) comparing the different origins (peri-urban, rural, imports) in terms of price, quality, and availability of commodities; (iii) identifying advantages and constraints of actors including access to information. Method of market survey. The surveys took place in Tong Kan Kham, That Luang and Kua Dim markets. For the investigation of market flows and chains (activity 1), around one-third of market agents were interviewed, accounting for 92 people. The survey took place only once, in June, but data was collected on the variations during the year. Activity 2 took place in August on a sample of 50 traders. In the two surveys, the sample includes the different stakeholders present in markets (retailers, wholesalers, assemblers, producers). Main results: Among the selected vegetabl