A cross-safety-area multi-system collaborative modeling method

The invention relates to a cross-safety-area multi-system collaborative modeling method. The method comprises the following steps of firstly, initiating a resource id application to a security three-area coding management service; if the idle resource id is not available, generating a resource id application command text file and transmitting the resource id application command text file to a receiving directory of the first security area; generating a corresponding resource id sequence by the first safety region and sending to a third safety region coding management service through a forwardisolation device; and enabling the security third area to use the resource id to create a data record, or transmit the record information to the security first area through the reverse isolation device after modifying or deleting the existing record, and write the record information into a database of the security first area. According to the method, the requirements of modeling and maintenance ofthe three regions are met