Overvoltage protection circuit and overvoltage protection method of semiconductor device

The invention belongs to the technical field of semiconductors, and discloses an overvoltage protection circuit and an overvoltage protection method of a semiconductor device, and the overvoltage protection circuit comprises a signal control module, an active clamping module and a gate driving module. The active clamping module is connected with the gate pole driving module, and the active clamping module is used for monitoring a peak overvoltage signal in a semiconductor device in real time and sending the monitored peak overvoltage signal to the gate pole driving module; the gate pole driving module is connected with the active clamping module, and the gate pole driving module is used for receiving the peak overvoltage signal in the active clamping module and controlling the load semiconductor device to be switched on or switched off according to the received peak overvoltage signal; the signal control module is connected with the active clamping module, and the signal control module dynamically adjusts a p