The invention discloses improved type chemical reagent flow dividing equipment which comprises an accommodating pool, a guiding pipe and a flow guiding pipe, wherein the accommodating pool is fixedlyarranged on a machine body, the guiding pipe is connected with a reagent reaction tank, and the flow guiding pipe is connected with the sewage draining system; an installation block is fixedly arranged in the machine frame and above the accommodating pool, an installation groove extending left and right is arranged in the installation block, a jackingtop shaft is movably arranged in the installation groove, a sliding cavity extending up and downvertically is arranged in the installation block, a sliding arm is movably arranged in the sliding cavity, a groove hole communicated with the outer end is arranged on the upper side of a right end wall of the sliding cavity, a buckling groove is arranged in the jackingtop shaft, a flow dividing pipe is fixedly arranged in the ground, the lower endof the flow dividing pipe is arranged in the flow guiding pipe, the guiding pipe is fixedly connected with the upper end of a lateral wall of the flow dividing pipe, the guiding pipe is communicated with the inside of the flow dividing pipe, a bucket-shaped cavity is fixedly arranged at the upper end of the flowing dividing pipe, and a flow dividing core is movably arranged in the flow dividing pipe.