Abstract: [Purpose/Significance] The livestock and poultry industry in China is in an important period of accelerating transformation. Understanding the research status of the related technology has certain reference significance for the development of the livestock and poultry industry. [Method/Process] This paper takes three main directions of the technology in the field of livestock and poultry farming facilities, cage, feeding and environment control, as the research object, and uses patentometrics to analyze the development trend, technology branch, applicant and key patents at all stages. [Results/Conclusions] The development of cage, feeding and environment control technology has experienced three stages simultaneously: germination stage, fluctuating development stage and rapid development stage, and the current application volume is on the rise in a straight line. Technology applications in this field mainly come from enterprises, and there are obvious differences in technology layout among enterprises. In recent years, the number of key patents from China has increased significantly. The research on cage technology devices is focused on technologies such as excrement and urine removal and floor covering. Research on feeding is more than that on drinking water, and both focus on automation equipment. Environment control focuses on waste treatment , air conditioning and house cleaning and scrubbing.

Key words: smart agriculture, livestock and poultry farming facilities, cage technology, feeding technology, environment control technology, patentometrics