Mobile storage medium one-way input device

The utility model relates to a mobile storage medium one-way input device which comprises a U1 disk interface, a U2 disk interface, a USB signal output port, an ARM function module, an Ethernet to USB signal conversion plate, a USB signal router, an optical one-way transmission module and a U1 disk control module, wherein the connection mode of circuits is that the U2 disk interface, the ARM function module and the optical one-way transmission module are connected in series in turn from two directions, and the optical one-way transmission module, the Ethernet to USB signal conversion plate, the USB signal router and the USB signal output port are connected in series in turn from one direction, and the U1 disk interface, the U1 disk control module, the USB signal router and the USB signal output port are connected in series in turn from two directions. The mobile storage medium one-way input device has the following beneficial effects that the problem of information loss and leakage caused by the cross use of