Abstract: With the rapid development of artificial intelligence (AI) technology, AI has shown the potential of extensive application in the pharmaceutical industry.This paper summarizes the application of AI in drug development, manufacturing and marketing, analyzes the effectiveness and shortcomings of AI application in drug target discovery, molecular design and screening, drug interaction prediction, production quality monitoring, drug identification, patient profiling and drug recommendation, and proposes that the application of AI technology in the pharmaceutical industry will have huge value in shortening drug R& D cycle, reducing drug production and supply chain costs, reducing drug safety risks, and improving the efficiency of drug promotion, with long-term impact on the promotion of innovative drug research and the development of health industry.