According to software and hardware requirements of brake test-bed structure, this paper introduced overall plan and main parameters selecting method of related equipments, provided control strategy for variable electrical inertia. Authors had established automobile brake test-bed which is based on electrical inertia simulation technology, and had completed the simulation test and result analysis. The analysis results indicate that the margin between simulation of brake process and actual braking process is small, electrical inertia could simulate mechanical inertia. Applying the electrical inertia simulation technology could simplify structure of the traditional mechanical inertia test-bed which formerly is complicated, could expand the measuring scope and measuring accuracy of the test-bed, and could provide tools and platform for the brake performance test and experiment teaching.