A method for controlling a resistive random access memory (ReRAM) is proposed. The method calculates a number of a bit value of a data when the data is to be written to the resistive random access memory. Each bit of the data is flipped and the data is written to the ReRAM if the number of the bit value is greater than a half of a length of the data. The data as it original is written to the ReRAM if the number of the bit value is less than a half of the length of the data.