Small flow positive pulse generator

The invention discloses a small flow positive pulse generator. The positive pulse generator includes a body, a ball valve and a pulse valve; two axial direction channels are disposed in the body, andthe two axial direction channels are respectively a first axial direction channel and a second axial direction channel; and the ball valve is installed in the first axial direction channel, and the pulse valve is installed in the second axial direction channel. A ball valve driving mechanism is further mounted in the body, and a power output end of the ball valve driving mechanism is connected toa power input end of the ball valve. The ball valve driving mechanism is a motor, and an output end of a power shaft of the motor is connected to an input end of a valve shaft of the ball valve through a bevel gear. The small flow positive pulse generator achieves transmission of a pressure pulse signal to a wellhead; the ball valve only has two states of opening and closing, and a control mode issimple; and when water is