Separated file isolation reading system

The invention relates to the field of data transmission security, in particular to a separated file isolation reading system. The separated file isolation reading system comprises a first controller and a second controller which are connected with each other, wherein the first controller is connected with an instruction receiving module which is used for receiving the file format instruction in the network interface and only allows the file format instruction to pass through; the first controller is connected with a simulation operation module which is used for performing simulation operationon the file format instruction allowed to pass through by the instruction receiving module and obtaining a safety coefficient; and the first controller is connected with a data isolation module used for isolating the file format instruction with the safety factor lower than the threshold value obtained by the simulation operation module, and the first controller is connected with an instruction transmission module used fo