A data processing method, apparatus, and a fitness robot relate to the artificial intelligent field, where the data processing method includes calculating first energy consumption of a user in a preset time interval based on exercise data of the user, obtaining a first body weight change of the user in the preset time interval, predicting, based on the first energy consumption and the first body weight change, second energy consumption and a second body weight change of the user in a future preset time interval, obtaining, based on the first energy consumption, the first body weight change, the second energy consumption, and the second body weight change, a result indicating the user capability of completing an intended fitness plan, and correcting specified energy consumption of the user and a specified body weight change of the user in the preset time interval in the intended fitness plan based on the result.