Abstract: In order to explore a method to analyze roadheader turret characteristics,the vibration characteristics of roadheader turret were studied in view of the fracture of cantilever roadheader turret under long-term bearing of more variable stress and strain.This paper combined the measured data with the simulation model.Through the finite element software,the vibration characteristics of the rotary table were analyzed by combining the software modeling with the actual load input.Firstly,the force analysis in the cutting process was completed;the finite element model of the rotary table was established by Pro/E and ADAMS,and the simulated load was established by selecting,processing and combining the measured data of the underground working condition,and then the finite element model similar to the actual working condition was obtained;then the vibration modal analysis was carried out by ADAMS.The first six natural frequencies and vibration modes of the rotary table were solved.At the same time,the modal test of the turntable was carried out.The results showed that the analysis method was in good agreement with the test results.The mean variation is 11.83%,while the minimum is only 2.41%.The reasons for the deviation were analyzed,which proved that it could provide reference for the structural modification and dynamic characteristics improvement of roadheader turntable.