The invention relates to a user behavior trajectory playback method. The user behavior trajectory playback method specifically includes the steps: 1), loading Javascript on a function page; 2), when the function page receives user operation, judging whether the current user operation is needed to be recorded or not, if so, proceeding to 3), and otherwise coming to an end; 3), loading the function page, judging whether user behavior trajectory information needs to be recorded on the function page or not, if so, proceeding to 4), and otherwise coming to an end; 4), monitoring operation of a mouse and a keyboard, recording clicking-on position information of the mouse or the keyboard, and recording the clicking-on position information on the page; 5), when the function page is closed, storing the clicking-on position to a cache database; 6), analyzing data in the cache database, acquiring collection of the clicking-on position information of page operation, and realizing statistical analysis of playback and user behavior.