Applet-based guided operation computer-implemented method, medium, and system are disclosed. In one computer-implemented method, a trigger instruction for a target applet is detected. In response to detecting the trigger instruction, a host program and a function page of the target applet are opened, a guiding page loaded on the function page is opened, and a guiding video on the guiding page is played. The guiding video includes a directional action, voice prompt, or text prompt performed by a virtual character on the guiding page, and the guiding page includes a guiding touch point. A user operation on the guiding touch point on the guiding page is detected, where the operation is based on the directional action, voice prompt, and/or text prompt. A service function corresponding to the guiding touch point in the target applet is executed based on the user operation.