Provided is a remote operating system which enables to operate a device by a remote operating device in a simple and reliable manner even if the device to be operated is not equipped with a communication function, or if displayed contents on a monitor screen of the device to be operated are not recognized by the remote operating device. A remote operating system (100) includes: a screen acquisition unit (121); an image determination unit (122); a state providing unit (123); an operation reception unit (131); an operating signal output unit (132); a correct or incorrect operation determination unit (133); and a state database DB. The remote operating system (100) further includes a capture device (141) for capturing an image of a monitor X1 of a device X of interest, and a control interface (142) connected to a keyboard X2 of the object X to be controlled in a superimposed manner.