A novel method for mode regulation of a laser resonator is presented in this paper. The traditional spherical mirrors of the laser resonator are substituted by the micro-optic mirrors, which are produced by the binary optical technology. The phase distributions of the micro-optic mirrors may be designed carefully so that the output mode of the laser resonator is regulated as an arbitrary desired field distribution. Several mode fields, such as a fundamental-mode Gaussian distribution and a circular or rectangular unif...