The invention discloses a dynamic comparator with high speed and low kick noise, which belongs to the field of analog integrated circuits. Its structure includes: pre-amplification stage, current compensation branch for suppressing kickback noise, positive feedback regeneration stage composed of N-channel transistor and P-channel transistor cross-coupling unit, current between pre-amplification stage and positive feedback regeneration stage A control unit, a reset control unit, an offset calibration unit, and an inverter output driver stage. The two current compensation branches that suppress the kickback noise compensate the current attenuation of the main channel to ensure a constant working current of the input pair tube, thereby suppressing the influence of the kickback noise on the input signal, thereby increasing the size of the input pair tube and reducing offset voltage, increasing the response speed. Compared with the traditional comparator, the invention satisfies the requirement of high speed and low power consumption, and exhibits excellent kickback noise suppression ability.