A partner matching method in a costarring video is performed by a terminal. The terminal obtains a video recorded by a first user identifier and a video in which a second role that matches the first role is played and an associated second user identifier. After obtaining a total score of videos in which the second role is played by each second user identifier in each user type, the terminal ranks the videos in which the second role is played by the second user identifiers for each user type and displays a ranking result of the videos in which the second role is played for each user type. After obtaining a video selected from the ranking result, the terminal synthesizes a complete video from the selected video in which the second role is played and the video in which the first role is played.