Abstract: In order to optimize the design parameters of parabolic screen filter, a serial of experiments were developed under different conditions, such as screen size, inclination angle and water treatment. Removal rate of solid particles was considered as the evaluation indicator of the performance of parabolic screen filter. Screen size was set from 0.10 to 0.25 mm, inclination angle was set to be 37° and 53°, and influent water flow rate was set from 10 to 20 m3/h. Results showed that the particle removal rate had a certain correlation with screen size, it decreased with the increase of screen size. So the screen size was suggested to be equal to or less than mean diameter of solid particles. On the other hand, the removal rate had a negative correlation with influent water flow rate. The optimum hydraulic loading rate should be controlled lower than 50 m3/(m2?h). At last, larger inclination angle in appropriate range would be benefit for the enhancement of solid particle removal. In a word, parabolic screen filter is advisable and suitable for solid particle removal in aquaculture water treatment.