Like many of the classic swarm intelligence algorithm , gravitational search algorithm is easy to fall into local optimal solution and convergence precision that is not high in solving many optimization problems .In this situ-ation, this paper proposes an improved universal gravitation search algorithm based on reverse evaluation mecha -nism .The local optimization ability and the global exploration ability of the particle in the gravitational search algo -rithm are significantly improved by introducing the reverse evaluation mechanism and variation strategy .Simulation experiment of three sta...