This application provides a charging time estimation method and apparatus, and a storage medium. The method includes: obtaining a current temperature of a to-be-charged device and a current state of charge (SOC) of the to-be-charged device in a calculation period, and obtaining a required current of the to-be-charged device based on the current temperature and the current state of charge; and determining a charging current of the to-be-charged device; and obtaining a charging time. The method can be applied to a thermal management system of an electric vehicle or an optimization model of an off-line thermal management strategy. In this method, energy consumption of the thermal management system is estimated in a charging process, so as to resolve a problem that the energy consumption of the thermal management system is not considered in the conventional charging time estimation method, to make the estimated charging time more accurate.