With the popularization of Internet technology and the continuous expansion of network scale, all kinds of information anddata have been rapidly transmitted and exchanged. The data and information are transmitted on the Internet using data packets as thetransmission medium. Therefore, the capture and analysis of data packets are of great significance to the management and improve-ment of the network environment. This paper designs and implements a data packet capture analysis platform by using the networkanalysis open source library WinPcap and the Java class library Jpcap, and verifies the effectiveness of the platform through simula-tion experiments.