The invention discloses a restoring method of heat connecting allocation of rack-typed equipment to improve the reliability of the rack-typed business board of network communication, which comprises the following steps: A1. starting the detecting system of main control board; A2. detecting the groove position of the business board; displaying and reserving the allocating information; A3. judging whether the business board is at the groove position; reserving the allocating information of the business board at groove position; A4. restoring the allocating information of the groove position when the business board is plugged in the groove position. The invention can load and allocate the real-time allocating information in the buffer, which realizes reliable and convenient heat connecting allocation restoration.