The invention discloses an ICCD gain sine-wave modulation imager with no scanning rate, belonging to the field of photoelectronic imaging. The invention aims at solving the problem of poor precision of a current speed measuring device which acquires a target velocity image by point-by-point scanning based on Doppler frequency shift. A target is irradiated by laser beams ejected by a semiconductorlaser of the imager after being shaped by a transmitting optics shaping system; the laser beams are reflected by the target, then received by a receiver optical system and are converged to an ICCD area array detector to form an echoed signal; laser ejected by a sine-wave function generator is connected with the ICCD area array detector by a high-voltage modulation power supply to form an ICCD modulation signal; and the ICCD modulation signal is mixed with the echoed signal and Fourier Transform treatment is carried out by a control processor to obtain the velocity image of the target. The invention is applied to obtaining the velocity image of the target in the field of photoelectronic imaging.