The invention discloses a water treatment flocculation particle morphology control device which comprises a settling pond, wherein a vertical first partition plate is arranged in the settling pond, the settling pond is divided into a third cavity body and a fourth cavity body by the first partition plate, a stirring tank is arranged at the top of the settling pond, a horizontal second partition plate is arranged in the stirring tank, the stirring tank is divided into a first cavity body and a second cavity body by the second partition plate, a first flow guide pipe is communicated between thefirst cavity body and the third cavity body, a first shutoff valve is arranged on a pipe section of the first flow guide pipe, a second flow guide pipe is communicated between the second cavity body and the fourth cavity body, a second shutoff valve is arranged on a pipe section of the second flow guide pipe, an installation hole is formed in the top of the second partition plate, a filter screenis arranged in the installation hole, a cover plate is arranged at the top of the stirring tank, and a motor is arranged at the top of the cover plate. The water treatment flocculation particle morphology control device disclosed by the invention achieves partition treatment and has an excellent flocculation effect.