In this paper thermophysical andultrasonic propertiesofthorium carbide (ThC)inthe effects of three-body interaction (TBI) and by use of VTBFS model is reported.we are theoretically reporting elastic constants, pressure derivatives, dispersion relation curve, specific heat curve, combined density of states (CD’s) and equation of state and some ultrasonic propertiesof the thorium carbide (ThC). The achieved results are good with earlier reportedresults,whichgive very important information of this compound for further research.