The outstanding feature of the laser range profile (LRP) is that it can obtain the 3-D shape and the range information of
the target by one pulse without optical scanning system. In this paper, Laser range profile theory and simulation is
investigated. Laser range profile simulation is studied based on the theory of beam scattering by rough object, pulse
wave scattering theory and the radar equation, the calculated formula of laser range profile is obtained. This equation is,
in part, dependent upon the target's scattering strength which is quantified by its radar cross section. As examples, the
laser range profile simulations are done for the sphere. It is indicated that the influence of pulse width, beam parameters,
transmit-receive angle and target roughness on the simulation results is also analyzed. The peak position of laser range
profile curve act in accord with radial dimension, and the peak value is contain the information of geometric shape, viz.
the peak length of laser range profile curve act in accord with radius for the sphere, the shape of range profile curve act
in accord with lateral surface profile. This paper is offer theory bases and simulation method for abstraction and
identification target feature on laser waveband.