The disclosure relates to a method and device for controlling software upgrade and cleaning equipment, aiming at increasing the probability that the cleaning equipment successfully downloads an upgrade package. The method comprises the following steps: when an upgrade instruction is detected, determining a specified wifi signal strength value from at least one wifi signal strength value that has been recorded based on a preset strength threshold; determining the locations corresponding to the specified wifi signal strength value; determining a target location from the corresponding locations; and controlling the cleaning equipment to reach the target location to download the upgrade package at the target location. By adopting the method and device provided by the disclosure, the target location corresponding to the wifi signal strength that is suitable for downloading the upgrade package can be determined according to the scanning results of the wifi signal strength at each location, and thus the probability of successfully downloading the upgrade package can be increased, and the problem that the probability of successfully downloading the upgrade package is low due to the weak wifi signal strength at the locations in related technologies can be effectively solved.