A control device for an internal combustion engine that includes: a first detection unit detecting, as a first parameter, a temperature of a nozzle tip of an injector; and a second detection unit detecting, as a second parameter, a heat quantity of a cylinder head, and executes a dew condensation determination by using at least one of the first parameter and the second parameter, the control device includes: a third detection unit detecting an evaluation value allowing to evaluate a state of the internal combustion engine, a threshold value for selecting which parameter of the first and second parameters is selected being set with respect to the evaluation value, wherein the control device switches a parameter to be used to the first parameter, to the second parameter, or to both the first and second parameters in accordance with the evaluation value when executing the dew condensation determination.