The vibration testing and diagnosis on equipment

which has become one of the vital technologies to resolve vibration problems

is frequently applied for detecting equipment anti-vibration property and testing vibration analysis accuracy. Aiming at vibration problem of main gear box in hydrostatic support working table of CNC vertical lathe machine in practical use

the paper puts forward vibration testing method and testing procedures systematically

and processes main gear box of hydrostatic support working table using the method of vibration monitoring and diagnosis. A case study on 5m CNC vertical lathe machine from one factory

and finishes vibration testing

and analyzes the reason of the vibration and obtain the result of diagnosis using the software of vib-Graph

and prove the effectiveness of the method though test.