The goal is to study about the marketing strategist of merchants at Nong Mon market in Chon Buri province. It is about the attraction the customers of them; they succeed in their business which we have researched by interviewing the traders about their sales strategist to compete with their competitors who are equivalent with in every way. this project relates directly with English business because it is about selling a products. The methods of this project are 4Ps and 4Cs, how they use the methods the readers will see in the project. This project will collect the data by record and take a picture. The analysis result will adapted to use as information for learners who study about the strategist of marketing and is also goals to be as document in this subject including to be benefit for people who are interesting in this subject. We use the information for a book, website, and the interviewing the traders at Nong Mon market. We conclude the data by the record more than our opinion.