PURPOSE: To prevent the oversupply of a fuel and to enhance starting performance at the time of a low temperature by providing an injection supply means for reducing a starting infection quantity which is required at the time of starting when the operating time and the stopping time of an internal combustion engine before starting are not more than a set value and the temperature of cooling water is not more than a set value at the time of starting.

CONSTITUTION: A fuel injection valve 4, a water temperature sensor 10 for detecting a cooling water temperature TW, an air temperature sensor 12 for detecting an intake air temperature TA, a throttle sensor 14 for detecting the degree θ of opening of a throttle valve, an engine speed sensor 16 for detecting the number Ne of revolutions of an engine and an atmospheric sensor 18 for detecting an atmospheric pressure are connected to a control means 8. A starting fuel infection quantity control device 6 controls a fuel injection valve 4 by the control means 8 in order to correct the reduced quantity of the starting injection quantity TS of an internal combustion engine 2 when a cooling water temperature is not more than a set value at the time of start of the internal combustion engine 2 and the operating time TON and the stopping time TOF of the internal combustion engine 2 before starting are respectively not more than a set value, thereby enhancing the starting property.