Many research have reported earlier that the interaction between buyers and sellers ended by buying goods, though not necessarily so. This study aims to describe the discourse structure of the buying-selling interaction at the whole saler markets in Tanah Abang, Pasar Pagi Mangga Dua, Jatinegara, and Cipulir. This study revealed that the buying-selling discourse has three stages: opening, nucleus, and ending. The study found thirteen discourse buyer-seller acts, i.e pre-requesting goods, requesting goods, refusing price, approving price, offering billings goods, drawing conclusion of price, giving receiving money goods, requesting the money changes, thanking. During the interaction, the sellers or buyers express the act directly and indirectly.