With the continuous development of wireless communication technology, the research of Nakagami-m fading channel simulation model has been a hot spot. In order to get the best simulation model of fading channel, three simulation methods of Nakagami-m (m<1) fading channel are introduced, which are based on Beta function simulation method, approximate inverse cumulative distribution function simulation method and sinusoidal summation simulation method. The simulation maps of amplitude, phase and envelope autocorrelation function of the three methods are obtained by Matlab simulation software, and the results are compared and analyzed. The simulation method based on approximate inverse cumulative distribution function transformation is the best, followed by the Beta function simulation method, and the sinusoidal summation method is the most unsatisfactory.