The application provides a method for power determining. UE is configured with multiple cells, a first subframe of a first cell corresponds to multiple second subframes of a second cell, and the method includes: calculating a first power requirement on the first subframe, and calculating multiple second power requirements on the multiple second subframes; calculating a power indicator on the multiple second subframes according to the multiple second power requirements; and determining transmit powers on the first subframe and the multiple second subframes according to a magnitude relationship between a maximum transmit power and a sum of the first power requirement and the power indicator. In the application, the power indicator is determined for multiple subframes of the second cell.