To provide a control device for an internal combustion engine, preventing generation of turbo overrun in high speed operation while implementing high output and excellent transient performance in a low speed operation, in an internal combustion engine with turbocharger.

The control device for an internal combustion engine in which the turbocharger 22 with turbine 46 is disposed to an exhaust passage EP, comprises: an exhaust throttle valve 62 disposed to the exhaust passage EP on a downstream side of the turbine 46; and an opening control means controlling opening of the exhaust throttle valve 62 based on an engine operational status. When an engine revolution speed exceeds a predetermined value or an engine load exceeds a predetermined value, the opening control means controls the opening of the exhaust throttle valve 62 to be a closed position compared with a fully-opened position so that a pressure on the downstream side of the turbine 46 is increased so as to decrease a necessary turbine capacity down to a fixed turbine capacity.