China is the only country in the world with a world cultural heritage. China's long-standing civilization, long-standing farming civilization and the diverse ecological environment of 56 ethnic groups make China very rich in ethnic folk culture and artistic resources. Folk art is an ancient civilization with a long history. It is the mother of Chinese culture and an important carrier of human history. However, with the economic globalization, the accelerated development of urbanization, the rapid changes in scientific and technological innovation, and the great changes in the economy, society, and cultural living environment, people's values, knowledge structures and entertainment interests have undergone tremendous changes. Traditional arts and crafts have also suffered a great impact in the market economy and social and cultural changes, and some special arts with local characteristics are facing extinction. This paper used OBJ (object) technology to realize the encapsulation and description of three-dimensional entities, materials, positions, angles and other information, and comprehensively explained and analyzed the arts and crafts. In a survey on the popularity of handicrafts, it was found that pricing was a big factor in tourists' willingness to spend. 71% of tourists could accept handmade products less than 100 yuan. Therefore, in general, cheap price, good quality, and local characteristics were the most important factors.