Based on the analysis of the agricultural industrial chain structure and elements of agricultural products brand construction, this paper thoroughly analyzed the relevance of agricultural products brand construction and agricultural industrial chain, as well as constructed a three-in-one model of agricultural brand construction with agriculture industry chain as the main line, brand construction elements as the main contents, and brand construction participants as the main body. The study shows that brand awareness, brand association, quality and perceived quality, moderate price and brand loyalty are the main elements for agricultural products brand construction, while the agricultural industry chain with its brand functions like quality secure, value transmission and elevation, consumption trend direction, quality perception and recognition, brand association etc, is the strong guarantee for the agricultural products brand construction.