A surgical apparatus includes a treatment portion, a high-frequency output portion or the like that supplies energy such as a high-frequency current, a liquid feeding tube, a suction tube, a liquid feeding unit, a suction unit, two driving portions, and a CPU as a control portion. Based on stopping of the supply of energy from the high-frequency output portion or the like, the CPU controls at least one of the two driving portions after the supply of energy stops so that an output level of the liquid feeding unit/suction unit becomes higher than an output level of the liquid feeding unit/suction unit during supply of the energy.