The invention discloses a laser-clad lateral guide plate and a production method thereof. The production method comprises the following steps: forming a rectangular slot in a steel board, so as to form a lateral guide plate body; and cladding the rectangular slot of the lateral guide plate body by virtue of a powder presetting method, wherein the power is 3KW-4KW, the focal length is 270mm-300mm,the spot size is 10*2mm, the scanning speed is 11mm/s-15mm/s, the overlap rate is 30%. The laser-clad lateral guide plate comprises the laser-clad lateral guide plate body (1), wherein the laser-cladlateral guide plate (1) is provided with the rectangular slot (3), and an alloy hardening layer (2) is arranged in the rectangular slot (3) through laser cladding. The production method has the beneficial effects that the laser cladding cooling speed is high, tissues of a cladding layer are fine, and the bonding strength between the cladding layer and a matrix is large. The laser-clad lateral guide plate has the beneficial effects that the wear resistance and the precision are greatly improved, and the quality of a rolled product is guaranteed; and the lateral guide plate can be repeatedly manufactured and used, so that the production cost is saved, and the production benefit is increased.