The echo characteristics of partially coherent Gaussian Schell-model vortex beams are studied by using the generalized Huygens-Fresnel principle and random Gaussian rough surface model. The cross-spectral density function and intensity analytical formula of partially coherent vortex beams scattered by random rough surface are derived by special integral, and the simulation analysis is carried out. The results show that the intensity autocorrelation function curve decreases more and more steeply with the increase of topological charge, beam waist radius and coherence length. In strong turbulence environment, the attenuation of autocorrelation function is more and more serious. The inner scale will affect the autocorrelation function of light intensity, and it will decay seriously with the increase of the inner scale, while the outer scale has little effect on it. As the coherence length of the rough target increases, the half-peak width of the intensity autocorrelation function gradually increases.