The invention provides a DCS control device for an ORC generator set and relates to a control or regulation system, particularly a control device for an ORC generator set. The control device is suitable for the field of generator set control. The invention aims to overcome the defects that a control system of an existing ORC generator set is not suitable for occasions with high automation degree requirements and is low in system integration level. The DCS control device for the ORC generator set comprises a man-machine interaction device and a DCS which is in communication with the man-machineinteraction device. The DCS comprises a controller clamping piece, an analog quantity input and output clamping piece, a switching value input and output clamping piece, a temperature-measuring clamping piece and a speed-measuring protection clamping piece, wherein the analog quantity input and output clamping piece, the switching value input and output clamping piece, the temperature-measuring clamping piece and the speed-measuring protection clamping piece are in communication with the controller clamping piece through distributed IO buses. According to the invention, the DCS hardware is adopted as a control system of the ORC generator set, so that the production process is managed in a centralized mode. The device has the advantages of high integration level, strong DCS extension function and high automation level. The device more focuses on analogue control and closed-loop control.