Traditional test methods for thermal sensitivity of solid energetic materials were summarized. Aiming at the limitation of the fact that these methods cannot be applied to liquid energetic materials, a method using Accelerating Rate Calorimeter (ARC) to test thermal sensitivity of energetic materials was put forward. The decompositions of four solid explosives Pentaerythritol tetranitrate (PETN), Hexogen (RDX), Octogen (HMX), 2,4,6-Trinitrotoluene (TNT) and two liquid energetic materials Nitroethane (NE), 2-Ethylhexyl nitrate (EHN) were studied by ARC. Kinetic and thermodynamics parameters were calculated and analyzed. Temperature corresponding different time to maximum rate under adiabatic condition (θ) was calculated. Thermal sensitivity of four solid energetic materials is PETN>RDX>HMX>TNT, which is consistent with the conclusion obtained by the traditional Wood′s alloy bath method, therefore ARC can be employed to the test of the thermal sensitivity of both solid and liquid 〖JP3〗energetic material. The thermal sensitivity order of six energetic materials from high to low is EHN＞PETN＞RDX＞HMX＞TNT＞NE.〖JP〗