Provided is a cargo container butting method executed by a robot. The method includes: in a case of traveling to a butting region of a target cargo container, determining a reference position according to a position of a target marker on the target cargo container and adjusting a travel direction of the robot according to the reference position, traveling into a bottom of the target cargo container according to the adjusted travel direction, traveling to a butting position of the target cargo container, and butting the target cargo container on the bottom of the target cargo container. Provided further are a robot and a storage medium.