The utility model relates to a dull and stereotyped reactor device of gas -liquid mixture mass transfer photoproduction thing that easily enlarges, its characterized in that: including parallelly connected a plurality of dull and stereotyped reactor, dull and stereotyped reactor includes reactor casing, guide plate, gas -liquid mixture system and blast pipe, the reactor casing be the board -like structure of cuboid, the surface is the light transmissivity material, the reactor top surface is opened has draw water mouth and two gas outlets, and the mouth that draws water links to each other with the pipeline that draws water, and a return bend is connected to the gas outlet, one unrestrained mouthful and an inlet have been opened respectively to the reactor bottom surface, the guide plate be perpendicular set up a pair of, aequilate with the reactor, highly be the reactor the quartering three, the material be toughened glass or organic glass, in the middle of divideing into whole reactor one is ascending, and distinguish and two declines of both sides are distinguished. The beneficial effects of the utility model are that: gas -liquid mixer utilizes ejector and static mixer to make up a special blender that is used for gas and liquid mixing that forms.