Abstract: To solve the problem of erosion of stabilizers and insufficient shock absorption performance during repeated use in the application of directional measuring instruments, this paper optimized the design of stabilizers based on CFD fluid simulation method, modified their rubber materials, and conducted experimental research. The simulation results showed that by optimizing the design of the stabilizer's wing, the generation of downstream vortex can be suppressed, reducing the pressure loss coefficient of the flow field from 0.596 to 0.515 and making the flow field distribution more uniform. Experimental tests had shown that the compression permanent deformation of the modified rubber material has been reduced from 87.5% to 22.5%, and the shock absorption effect of the stabilizer had been improved. The optimization and improvement of the above two aspects have effectively improved the reliability and measurement accuracy of the stabilizer, and reduced maintenance costs.