Abstract: By integrating the spectral model of nonlinear shallow water equations, a numerical experiment of the influence of stationary vortex sources in the tropical belt on different basic flows was carried out. The results show that the influence of tropical disturbance can be global when basic flows behave meridionally or in a pattern of uniform westerly. It can motivate about 3 pairs of waves that propagate along a "great circle route"and significantly affect the general circulation in mid-high latitudes. When basic flows appear in the form of stationary atmosphere or global easterly,the external forcing in the tropics triggers only a weak disturbance in the vicinity of itself.