Wireless transmission repeater having power supply warning function

The utility model, which relates to the technical field of the wireless radio frequency transmission, discloses a wireless transmission repeater having a power supply warning function. The wireless transmission repeater is composed of a microprocessor, a memory, a power supply warning device, a wireless radio frequency device, a power supply, and an antenna. The microprocessor is respectively connected with the wireless radio frequency device, the memory, and the power supply warning device; the wireless radio frequency device is connected with the antenna; and the power supply is respectively connected with the microprocessor and the power supply warning device. With the power supply warning device, warning can be carried out when the power supply capacity is too low, and thus the user is notified to replace the power supply timely, thereby preventing the data signal transmission interruption and information loss and guaranteeing reliable data information transmission. The microprocessor determines the signal intensity of the data information to determine whether the data signal is one that the microprocessor is responsible for receiving and forwarding, forwards the data signal that the microprocessor is responsible for receiving and forwarding by the wireless radio frequency device and the antenna, thereby preventing data information distortion and loss due to forwarding of data information with low signal intensity.