The invention relates to a water spraying device capable of automatically stretching and rotating. The device comprises a device shell, a spraying body is arranged in the device shell, the upper end and the lower end of the spraying body are communicated with a spraying body cover and a
nozzle column respectively, the spraying body cover is connected with an external
water pipe, and a steel sleeve, a spring and a
nozzle capable of popping up and retracting by means of
water pressure in the spraying body are arranged in the spraying body, the spraying body is fixedly connected with a driven gear, a driving gear is meshed with the driven gear, the
motor shaft of a motor is in key connection with the driving gear, and a whole vehicle BCM controller is in control connection with the motor. According to the water spraying device, when a driver starts a water spraying function, the
nozzle automatically stretches out to spray a columnar
water column with a stable angle, automatic reciprocating rotary spraying can be achieved, the spraying area of washing liquid on
windshield glass is greatly increased compared with a traditional column shape and a traditional fan shape, the nozzle is automatically contracted into the device shell when water is not sprayed, and the nozzle is effectively hidden; and the double functions of automatic stretching and automatic rotating are synchronously achieved, the appearance feeling and the high-end feeling of the whole automobile can be greatly improved, and the device is small in mechanism and flexible in arrangement position.