The utility model relates to the technical field of toys, in particular to a self-luminous water gun which comprises an outer sleeve
assembly and a pull rod
assembly arranged in the outer sleeve
assembly in a movable push-pull mode, the outer sleeve assembly comprises a pearl
wool protective sleeve and an outer cylinder body which are sequentially and fixedly connected from outside to inside, and a water outlet is formed in the front end of the outer sleeve assembly. An outer end cover, a
shower head cover, a water spraying end cover, a
flange plate, a
fan blade end cover and a water containing
pipe are sequentially and fixedly connected to the inner side of the outer cylinder body in the direction from the water outlet to the pull rod assembly, a generator and an
LED lamp are installed on one side of the
flange plate, and a driving
impeller connected with an input shaft of the generator is installed on the other side of the
flange plate. The utility model has the technical effects and advantages that: 1, the generator is driven by
water flow to generate
electric energy to drive the
LED lamp to emit light without using a battery, so that more energy is saved and the environment is protected; 2, the outer side of the water gun is provided with a soft pearl
wool protective layer, so that the safety of the child during playing is ensured, and the body or the water gun is prevented from being damaged;