The invention provides a method and device for analyzing a power utilization module. The method includes the steps that power utilization data of multiple power devices in a preset period is obtained; the power utilization data of each power device is compared with corresponding standard power utilization data, and comparison results are obtained; according to the comparison results, target power utilization data is searched in the power utilization data of the power devices, and the power device corresponding to the target power utilization data serves as a target power device, wherein the target power utilization data is used for showing that the target power device is in a fault working state. The method for analyzing the power utilization module can accurately determine the target power device (the power device which breaks down) in the power devices, so that a user specifically maintains the power device which breaks down. When the power device which breaks down is determined, the process is simple and rapid, the intelligence degree is high, and the technical problems that the efficiency is low and the intelligence degree is low when power device fault detection is conducted in the prior art are solved.