Abstract: In order to study the influence of shunt blade wrapping angle on solid-liquid two-phase flow in low specific speed centrifugal pump. This paper uses the mixture multiphase flow model and ANSYS CFX software to simulate the solid-liquid two-phase flow of five lowspecific speed centrifugal pumps with different blade angles. The influencing factors of low specific speed centrifugal pump efficiency, head, static pressure distribution, solid phase volume fraction and radial force with different blade angles are discussed. The results show that the efficiency reaches the highest when the shunt blade envelope angle φ=70° under clean water conditions, and decreases with the increase in the shunt blade envelope angle under the solid-liquid two phase condition. The solid particles are mainly distributed on the back of the blade.With the increase in the shunt blade envelope angle, the solid particles on the shunt blade gradually spread to the inlet of the impeller, and the distribution of solid particles on the main blade is basically unchanged. Too large or too small cladding angle of the shunt blade is not conducive to reducing the pressure pulsation and radial force of the centrifugal pump, and there exists the optimal cladding angle of the shunt blade φ=70°.