The disclosure provides a method for obtaining a Transmission Power Control (TPC) command, relating to the field of wireless communications. The method comprises the following steps: presetting a Signal to Interference plus Noise Ratio (SINR) value threshold, wherein the SINR value threshold comprising a highest value HSINR, a median value MSINR, and a lowest value LSINR; comparing a current SINR value with a target SINR value to obtain a difference value ΔSINR; and comparing the ΔSINR with the SINR value threshold, and obtaining a TPC command according to a result of comparison. The disclosure also provides a device for obtaining a TPC command. By the method or device in the disclosure, the accuracy and instantaneity of obtaining a TPC command are improved.