With the rapid development of Internet technology and the rapid spread of mobile devices, mobile devices have become an indispensable tool for people today and store a large amount of user’s private information. The use of mobile devices for fraud, illegal transactions, dissemination of rumors, and the spread of Trojan horse crimes and other criminal activities are increasing, which has a serious impact on social stability. Therefore, how to locate the suspect’s geographical position and narrow the scope of arrest become particularly important. Based on the principles of mobile digital forensics, this paper studies and designs a complete location analysis system for mobile terminal device from the perspective of data visualization.