Abstract: With the rapid development of animal husbandry in China,the situation of "human and livestock fighting for food" occurs. In the meanwhile,using bast fiber crops as feeds may expand the feed source of livestock and poultry,thus it is expected to effectively alleviate such situation. In order to better understand and grasp the development status of feed processing technology of bast fiber crops,the relevant patents of using bast fiber crops as feeds was searched from the Innography patent database while techno-sphere of feed processing technology for the bast fiber crops chosen as research object. Further,the patent portfolio,major patent technologies,the core patents,and the competences of patentees in global were completely analyzed. In the meanwhile,the 5 main research fields of raw materials,flax seed,hemp,flax harvester and animal feed were analyzed by means of the text clustering function of patent analysis software. The research results are aimed to provide references for the transformation of bast industry and using bast fiber crops as feed in China.

Key words: bast fiber crops, feed processing, analysis of patents, hotspot, Innography database