The embodiment of the invention discloses a data synchronization method and device for skipping from a browser to an application program. The method comprises the steps that a first webpage resource request initiated in the browser is detected, and when the first webpage resource request is detected, a first URL corresponding to the first webpage resource request is acquired; a local application program list is read, and an application program corresponding to the first URL is looked up in the local application program list to serve as a target application program; if the application program is found, the local application program list is skipped to an application interface corresponding to the first URL in the target application program; a second URL corresponding to a second webpage resource request initiated in the target application program is acquired, and a behavior record is generated according to the second URL; the behavior record is sent to the browser to be stored according to a preset synchronization cycle, wherein the browser is used for reporting the stored behavior record to a server. By adopting the data synchronization method and device, the browser data counting accuracy can be improved.