Safety isolation device of industrial control bastion host

The utility model relates to the technical field of bastion computers, in particular to a safety isolation device of an industrial control bastion computer, which comprises a bastion computer shell, at least a mainboard and a hard disk are arranged in the bastion computer shell, the hard disk is connected with the mainboard through a data line, and one end of the data line connected with the hard disk is defined as a data line plug. The data line plug and the bastion host shell are fixedly installed, the hard disk and the bastion host shell are installed in a sliding mode, the sliding direction of the hard disk is arranged along the insertion direction of the data line plug, and an electric telescopic rod capable of driving the hard disk to be connected with the data line plug in an inserted mode is installed in the bastion host shell. The electric telescopic rod is electrically connected with a switch module capable of controlling the electric telescopic rod to stretch out and draw back. In the non-working t