In order to investigate the effect of the topography on the vortex self-organization in the rotational atmosphere,two numerical experiments,with 48 hours integral time are performed by using a β-plane quasi-geostrophic barotropic vorticity equation model with a topographic term.The main distinct differences between the rotational and non rotational atmosphere resulting from introducing the β term are as follows:Firstly,in the non rotational atmosphere,the characteristics of the multi-vortices self-organization are that the quasi-final vortex absorb or organize all of the initial multi-vortices;but those in the rotational atmosphere are absorbing or organizing the initial multi-vortices partly.Secondly,the influences of mesoscale topography on the quasi-final structure position are smaller in the non rotational atmosphere than that in the rotational atmosphere;the distance between the two quasi-final vortex centers in the rotational atmosphere is as twice as that in the non rotational one,the former is about 200 km but the latter about 100 km no matter introducing the topographic term.