As a promising method dealing with various wireless channel performance fading, MIMO technology is effective in supporting reliable, high-data-rate transmission. While the wireless system must cope with the space-time correlation and fast Rician fading. In this paper, we investigate the influence of space-time correlation and fast Rician fading on the performance of MIMO systems. Based on multivariable statistics, we derive the upper bound of the average pairwise error probability in spatial correlation Rician fast fading channels. Ultimately, we compare the different channel characters on the performance of the system, and we present some simulations to approve our derivation. (6 pages)