To address the problem that the bandwidth and gain of conventional analog equalizers cannot be satisfied simultaneously, inductive cresting technique and negative impedance converter are used for high frequency operation. The bandwidth is extended by using active inductors to achieve inductive cresting techniques, while a negative impedance converter consisting of crosscoupled transistors converts capacitance into negative capacitance to offset the output capacitance, increasing peak gain while maintaining DC gain. The circuit is designed based on the SMIC 130 nm process library. The simulation results show that the equalizer works under the power supply voltage of 18 V, which can well compensate the severely lost channel in the highspeed transmission system at the rate of 6375 Gbps. The horizontal opening of the eye diagram reaches 085 UI.