Based on the background of the information age, with the continuous development of computer technology and information network technology, artificial intelligence has also made rapid progress in the era of big data and is closely related to people's daily lives. Artificial intelligence gradually enters people's daily work and life. Therefore, it is very necessary to analyze the application value of artificial intelligence in computer network technology based on the era of big data. The paper discusses the application value of artificial intelligence in computer network technology in the era of big data, and mainly focuses on the related applications of data mining technology, intrusion detection technology and firewall technology, hoping to bring certain reference up to 7.8% and reference to relevant professionals.