Piezoelectric injection valve

The invention discloses a piezoelectric injection valve. The piezoelectric injection valve comprises a valve body, a first piezoelectric part, a second piezoelectric part, a pressing rod, a striker and a reset spring, the pressing rod can rotate on the basis of a first rotating shaft, a first piezoelectric rod and a second piezoelectric rod are arranged on the two sides of the first rotating shaftcorrespondingly and abut against the pressing rod, one end of the striker penetrates out of the valve body, the end, close to the first piezoelectric rod, of the pressing rod abuts against the otherend of the striker, and the reset spring sleeves the striker and abuts against the end face of the striker. According to the piezoelectric injection valve, the first piezoelectric rod and the second piezoelectric rod are alternately electrified, so that the striker moves downwards under the effect of the pressure applied to the striker when the first piezoelectric rod is electrified, when the second piezoelectric rod is el