A wall collision U-turning method for a swimming pool cleaning robot, a swimming pool edge cleaning method, and an electronic device are provided. The wall collision U-turning method includes: controlling the swimming pool cleaning robot to move toward a wall of a swimming pool based on a preset orientation until the swimming pool cleaning robot collides with the wall of the swimming pool; controlling the swimming pool cleaning robot to move backward relative to the wall of the swimming pool until a spacing distance between the swimming pool cleaning robot and the wall of the swimming pool is sufficient for the swimming pool cleaning robot to perform a U-turn motion; and controlling the swimming pool cleaning robot to perform a U-turn relative to the wall of the swimming pool until the U-turn orientation of the swimming pool cleaning robot after completion of the U-turn is opposite to the preset orientation.