Rapid message forwarding method and system for physical isolation equipment

The invention discloses a rapid message forwarding method and system for physical isolation equipment. The method comprises the following steps: acquiring a to-be-forwarded message flow; a to-be-forwarded message flow is divided into a plurality of messages, and in a forwarding stage, a fast table is established for the first message; calculating hash values of all elements in a non-first message to be forwarded; taking the hash value as an index value of a table structure, positioning table entries of the fast table according to the index value, and if the corresponding table entries exist in the fast table by taking the corresponding hash value as the index value, carrying out protocol conversion on the message according to the content of the table entries corresponding to the hash value, and then forwarding the message; judging whether the hash value is data in an illegal data table or not; and judging whether the hash value is the data in the legal data table, if so, adding the hash value into the fast ta