The invention relates to a protection control method for a dehumidifier compressor and a dehumidifier. The dehumidifier is provided with a lateral surface air inlet and a front surface air inlet. When the dehumidifier is started, the lateral surface air inlet is closed, and the front surface air inlet is opened. The temperature T of a condenser outer coil pipe of the dehumidifier is detected. When the temperature T of the outer coil pipe is within a set threshold value range, the lateral surface air inlet is opened within the threshold value range, and the opening degree of the front surface air inlet is controlled to adjust the current of the compressor. By means of the protection control method for the dehumidifier compressor and the dehumidifier, the situation that the compressor is burnt out due to too high pressure of a system can be prevented, and the use safety and system stability of the compressor are improved.