Brake protection system and electric tool

The utility model relates to the field of electric tools, in particular to a brake protection system and an electric tool, the brake protection system comprises a battery module and a motor module, the battery module is connected with the motor module, the brake protection system is characterized by further comprising an energy release module and an on-off control module, the energy release module is connected to the two ends of the motor module, and the on-off control module is connected with the battery module. The energy release module is grounded, the control end of the energy release module is connected with the negative electrode of the battery module, the energy release module is used for consuming excessive current generated by the motor module, the on-off control module is connected to the grounding end of the energy release module, and the on-off control module is connected with the negative electrode of the battery module. The on-off control module is used for controlling on-off of the energy relea