Abstract: An output device for outputting drive signals to a surgical instrument and a surgical system. The device includes an ultrasonic energy source and a high-frequency electric energy source located in the same casing, a signal port, an ultrasonic signal acquisition circuit, a high-frequency electric signal acquisition circuit, and a control module, and the control module is configured to obtain adjustment parameters based on the feedback signals, and control the ultrasonic energy source and the high-frequency electric energy source to output drive signals based on the adjustment parameters. The surgical instrument includes one or more of an ultrasonic-electric scalpel, an ultrasonic scalpel, a monopolar electrotome, and a bipolar electrotome.