The present invention discloses a fluid application system and a fluid application method. The fluid application system (10) is provided with: an application device (20) that discharges a fluid onto a workpiece; a transfer device (30) that transfers the application device (20) and the workpiece relative to each other; and a control device (11) that controls the application device (20). When the amount of fluid discharged from a nozzle (23) is varied by a target variation (F1) by adjusting an output for a mechanical power source (22), the control device (11) sets the output of the mechanical power source (22) to a value that temporarily exceeds a theoretical output (N1) for the mechanical power source (22) found from the target variation (F1) for the amount of discharge such that the variation in internal pressure of the nozzle (23) is an amount (P1) that should be varied in the internal pressure of the nozzle (23) found from the target variation (F1) for the amount of discharge, and thereafter sets the same to the theoretical output (N1). Thus, when the amount of discharge of the fluid from the nozzle (23) per unit time is varied, response delay in the amount of discharge can be suppressed.