In a vehicle drive power control apparatus of the present invention, an output of a first throttle valve opening detection means 61 and an output of a first accelerator opening detector 51 are inputted into a first control unit 2. Further, an output of a second throttle valve opening detection means 62 and an output of a second accelerator opening detector 52 are inputted into a second control unit 3. In addition, the vehicle drive power control apparatus comprises first and second throttle opening detection failure decision units deciding a failure of the first and second throttle opening detection means 34, 35, and communication failure decision means 33 deciding a failure of communication means between the first and second control units 2, 3. Furthermore, the vehicle drive power control apparatus switches each failure decision method of the first and second throttle opening detection failure decision means 34, 35 according to the decision results of respective failure decision means.