The invention discloses a high-speed space-time computing platform, which includes a storage module, an FPGA parallel array module and an external interface computer, and the storage module and the FPGA parallel array module are connected to the external interface computer; The results are compressed and stored, and SSDs are used to query the collision points in parallel; the FPGA parallel array module is used to distribute encryption to each individual FPGA chip in parallel, and to find the collision point of the rainbow table through multiple FPGA chips running in parallel; the external interface computer is used to The way of socket provides the deciphering of MD5, Sha1, Sha256 and DES. The present invention combines many years of experience in password deciphering, on the basis of the existing FPGA parallel array module, adopts the rainbow table processing scheme, develops a high-speed space-time computing platform, adopts a time-space balance mode for password deciphering, and quickly deciphers the plaintext of the password within a certain range. Assist the security department to quickly obtain evidence and handle cases.