To make it possible to suppress overdischarge of an electric storage device even when the electric storage device is in a charge-limited state in a fuel cell output control device.

A vehicle drive control system 10 including a fuel cell 44 and an electric storage device 32 uses a control unit 60 having: an FC output instruction value calculation module 62 which calculates an output instruction value of a fuel cell 44 according to a power required by a rotary machine 12; a regeneration limit determination module 64 which determines whether regeneration is limited for the rotary machine 12; a battery limit determination module 66 which determines whether charge of the electric storage device 32 is limited; and a required power correction module 68 which corrects the required power of the fuel cell when the charge of the electric storage device 32 is limited and neither of the fuel cell 44 or the rotary machine 12 generates power, so as to limit discharge from the electric storage device 32.