For a better analysis of the deformation of the steelreinforced light aggregate concrete member, adopt asymmetric loading mode,carry on numerical simulation of bearing capacity of steel reinforced lightaggregate concrete beams. The simulation results show that the: In theasymmetric loads, longitudinal reinforcement of the bottom of the beam both ends of the constrained position, due tothe presence of constraints, make it tensile stress,in the 250mmposition is tensile stress minimum, compressive stress correspondingly larger.In the central beam downward bending deformation, this part of the lower edgeof the beam longitudinal reinforcement tensile stress.