Abstract: This paper here proposes a fault-tolerant cloud computing core failure check parallel data packing method. Firstly, the core of cloud computing failure check algorithm is introduced, at the same time to avoid data overflow, here use symmetric packing for parallel computing on the input and output using the redundant features contained in the package, which can improve the fault tolerance performance of continuous core fault; Secondly, the packet data corresponding to the GEMM operation, a new integer matrix the multiplication and convolution was construct to alleviate the core problem, and the computational complexity of the proposed scheme was analyzed in theory; Finally, the comparison experiments on the Amazon Web services optimization and image retrieval experiments show that the proposed method is effective.