The brand image of agricultural products is improved and the purchase experience of consumers is enhanced through the theory and method of service design to increase the sales and income for farmers, and provide design exploration for the implementation and practice of rural revitalization policy. Taking the sesame oil products as an example, the stakeholders, user portrait, user joumey map J5 and contact point analysis are determined through consumer behavior and market analysis, etc., to put forward the user experience map and the service blueprint of online shopping of sesame oil agricultural products under the social background of rural revitalization, and build the service design strategy of the agricultural product brand. With the method of service design thinking, combined with the existing policy advantages, technical means and market opportunities, the service design strategies of agricultural product brand are put forward for the purpose of design helping farmers out of poverty and revitalizing the competitiveness of rural agricultural products. The advantages of rural agricultural products, such as natural property,green, rich history and feelings, coexist with such disadvantages as lack of quality standards, weak brand awareness,narrow communication channels, etc. It is an important means to build the brand of agricultural products by injecting brand vitality through design, and building a service system that is easy for farmers to operate, requires low investment cost and has good user experience. It is also an important way to achieve poverty alleviation through design and rural revitalization by developing the service and brand thinking of farmers.