Abstract: The existence of spatial correlation will severely degrade the performance of MIMO systems, we propose an algorithm called Space Time Robust to Correlated MIMO (STRCM) that Alamouti's code is utilized to obtain the transmit diversity, V-BLAST order interference cancellation detection is adopted in the receiver directly via the grouping and reconstruction of channel matrix. Simulations show that the proposed scheme is more robust to spatial correlation than V-BLAST, and the complexity is not increase.