Abstract: By heterogeneous stochastic frontier analysis method and set of trade inefficiency as the truncated semi-normal distribution, this paper uses export mixed panel data of 5 classifications of agricultural products between 2007 and 2016, and estimates the impact of trade constraints on China agricultural export. The results show as below. After identifying trade constraint factors, the average value of export efficiency of China agricultural products is 0.5187, which is lower than the optimal frontier efficiency level. This indicates that a great potential of export for China agricultural products do exist. Trade constraints have different influencing coefficients on 5 kinds of agricultural products. For processed agricultural products and grain and oil, improvement on quality of logistics infrastructure significantly reduces trade constraints, but also makes trade uncertainty increases. For textile raw materials, improvement of cargo transportation and timeliness significantly makes trade constraints weakened. The efficiency of customs clearance, quality of logistics infrastructure and timeliness of freight transport can significantly reduce the trade restrictions on agricultural exports, and the improvement of customs efficiency is more significant to reduce trade restrictions. Some suggestions are put forward from the aspects of quality of logistics infrastructure, the efficiency of customs clearance, and the timeliness of goods transportation, so as to provide reference for decision-making departments.