The invention discloses a quick-leading-edge, low-shake and heavy-frequency trigger source based on a pseudo-spark switch trigger, which comprises a positive and negative charging power supply, a control system, the trigger and a low-shake, heavy-frequency and quick-Marx generator system, wherein the positive and negative charging power supply is connected with an input end of the low-shake, heavy-frequency and quick-Marx generator system; a positive power supply of the positive and negative charging power supply is connected with the trigger; the control system is connected between the positive and negative charging power supply and the trigger; the low-shake, heavy-frequency and quick-Marx generator system is connected with the trigger; and a switch in the trigger is a pseudo-spark switch. The trigger source has many advantages of high and continuously-adjustable output voltage, quick leading edge, low shake, heavy-frequency stable operation, and the like; a low-shake and heavy-frequency switch technology, and technical researches of pulse synchronization, superposition and synthesis can be carried out based on the trigger source; and a certain technical foundation is laid for a higher-power level of a pulse power supply system.