Equalizer parameter testing method and device

The invention discloses an equalizer parameter testing method and device, and the method comprises the steps: adjusting information received by a signal receiving end through a channel between the signal receiving end and a signal transmitting end through an ith equalizer parameter EQ value in an equalizer compensation range at a handshake stage before communication starts, and obtaining actual information; within the test duration of the ith EQ value, executing a detection operation once every preset duration; the detection operation comprises the following steps: comparing the actual information with the initial information, and determining the error rate of the path; if the bit error rate is greater than the bit error threshold, stopping testing the ith EQ value, determining the ith EQ value as an invalid EQ value, and starting testing the next EQ value; if the bit error rate is not greater than the bit error threshold value, continuing to execute the detection operation once every preset duration; and if