Abstract:Grain and oil security is a major strategic issue of national economic development and social stability of our country. In this article,through the Chinese intellectual property patent database as the data source,using SOOPAT patent database search engine as a retrieval tool,analysised the 1986-2015 years of Chinese patent application trend of grain and oil industry,technology life cycle,patent technology,hot spots,national patent application situation in China,legal status and regional differentiation.The results showed that China's grain and oil industry in the maturation of technology life cycle,from the initial attaches great importance to the number of patents convert to pay more attention to the ascension of the patent quality, Most of the patents were based on the invention of the position. The applicant was mainly a junior college and scientific research unit. Pesticide plant growth regulator, microorganism or enzyme, cultivation, seeding fertilizer and plant regeneration were the hot spots in the development of Chinese grain oil industry technology.