The invention discloses a piezoelectric ceramic driven micro jet valve. The piezoelectric ceramic driven micro jet valve comprises a power body, a first micro-displacement amplifying mechanism, a second micro-displacement amplifying mechanism and a triggering pin which are sequentially connected; the inside of the power body is provided with a piezoelectric ceramic module which is used for triggering the first micro-displacement amplifying mechanism to act, the first micro-displacement amplifying mechanism is used for triggering the second micro-displacement mechanism to act, and the second micro-displacement amplifying mechanism is coupled to the triggering pin and triggers the triggering pin to move; the triggering pin is in matched connection with a fluid seat which is connected with afluid supply device, the fluid outlet of the fluid seat is provided with a spray nozzle, and the triggering pin is provided with a reset spring module. The piezoelectric ceramic driven micro jet valveis high in jet frequency, wide in applicable viscosity range and low in cost.