A control device for a hybrid vehicle, the control device comprising: an engine and an electric motor as driving sources; a driving device for changing speed of a mechanical power from the engine and the electric motor, the mechanical power transmittable to a vehicle propelling shaft engaged with driving wheels (WR, WL); a control means for controlling a vehicle driving using the driving device; and a vehicle speed detection means for detecting a vehicle speed, wherein as transmission routes of a driving force, the driving device has at least a first transmission route between the engine and the driving wheels (WR, WL), a second transmission route between the electric motor and the driving wheels and a third transmission route between the motor and the engine, wherein as modes for starting the engine in a motor single driving that is a vehicle driving only using the electric motor as a driving source, a push-start mode and a motor start mode are executable, the push-start mode for transmitting a driving force from the driving wheels (WR, WL)to the engine via the first transmission route at a vehicle speed detected by the vehicle speed detection means equal to or more than a predetermined vehicle speed to start the engine, the motor start mode for starting the engine using a driving force of the electric motor via the third transmission route at a vehicle speed detected by the vehicle speed detection means equal to or less than another predetermined vehicle speed as well as in a stopped state, characterised in that the control means performs a driving force reduction control for reducing a driving force transmitted from the electric motor to the driving wheels (WR, WL)of the vehicle at a vehicle speed detected by the vehicle speed detection means out of a vehicle speed range in which either of the push-start mode or the motor start mode is executable at an occurrence of a start command of the engine in driving only using the electric motor as the driving source. an engine and an electric motor as driving sources; a driving device for changing speed of a mechanical power from the engine and the electric motor, the mechanical power transmittable to a vehicle propelling shaft engaged with driving wheels (WR, WL); a control means for controlling a vehicle driving using the driving device; and a vehicle speed detection means for detecting a vehicle speed, wherein as transmission routes of a driving force, the driving device has at least a first transmission route between the engine and the driving wheels (WR, WL), a second transmission route between the electric motor and the driving wheels and a third transmission route between the motor and the engine, wherein as modes for starting the engine in a motor single driving that is a vehicle driving only using the electric motor as a driving source, a push-start mode and a motor start mode are executable, the push-start mode for transmitting a driving force from the driving wheels (WR, WL)to the engine via the first transmission route at a vehicle speed detected by the vehicle speed detection means equal to or more than a predetermined vehicle speed to start the engine, the motor start mode for starting the engine using a driving force of the electric motor via the third transmission route at a vehicle speed detected by the vehicle speed detection means equal to or less than another predetermined vehicle speed as well as in a stopped state, characterised in that the control means performs a driving force reduction control for reducing a driving force transmitted from the electric motor to the driving wheels (WR, WL)of the vehicle at a vehicle speed detected by the vehicle speed detection means out of a vehicle speed range in which either of the push-start mode or the motor start mode is executable at an occurrence of a start command of the engine in driving only using the electric motor as the driving source.