The specific heat capacity of carbohydrazide perchloric acid energetic coordination compounds was studied by differential scanning calorimetry (DSC). The specific heat capacity of ［Co(CHZ) ₃］(ClO₄)₂ was mensurated at 50-140 ℃ and the specific heat capacity of ［Mn(CHZ) ₃］(ClO₄)₂,［Zn(CHZ) ₃］(ClO₄)₂ and ［Ni(CHZ) ₃］(ClO₄)₂ was mensurated at 50-200 ℃. The equations of the specific heat capacity changing with the temperature are fitted by the least square method,i.e.R≥0.985,SD≤0.060. The equations of the specific heat capacity of ［Mn(CHZ) ₃］(ClO₄)₂ and ［Zn(CHZ) ₃］(ClO₄)₂ are functions of second degree at 50.1-131.2 ℃ and that of ［Ni(CHZ) ₃］(ClO₄)₂ is the function of four degree at 50.1-142.9 ℃,however that of ［Mn(CHZ) ₃］(ClO₄)₂,［Zn(CHZ) ₃］(ClO₄)₂ and ［Ni(CHZ) ₃］(ClO₄)₂ are functions of three degree at the other temperature,and that of ［Co(CHZ) ₃］(ClO₄)₂ is the function of three degree. ［Co(CHZ) ₃］(ClO₄)₂ and ［Ni(CHZ) ₃］(ClO₄)₂ were analyzed by method of TG and FTIR. TG curves show that only ［Co(CHZ) ₃］(ClO₄)₂ loses weight after 140 ℃. FTIR spetra of two samples heated are different from that of the originals.