Epoxy resins have been used for many applications in composite industry .There are different curing systems to use for preparation of composites,and the effect of these systems are interested to researchers .In this research cure of an Epoxy resin type with two hardeners "nadic methyl anhydride " and " dicyandiamide" with different combining percentages has been studiesusing a Differential scanning calorimetry (DSC).Curing kinetics were examined in isothermal and dynamic conditions.DSC thermograms of all samples indicated that increasing molar percentage ratios (anhydride/dicy) caused reduction of enthalpy of the reaction.If the molar ratio increase over 40% another exothermic peack belonging to the effect of anydride appeared in the thermographs.Thusthe best molar ratio of the curing agents (in term of enthalpy) was 40% which was examined in an isothermal condition in the range of 130,135,140 and 145 °C .From the obtained thermograms by using a "reduced plot" method conversion-dependt function of the samples was determined.Activation energy of the samples was calculated using this function.The amount of activation energy (E a ) and pre-exponential factor (A) were 89.3 kJ/mol and 1.2 × 10 +9 1/sec, respectively.Also the reaction orders were m=0.7 and n=2.3.Curing analysis of this sample (molar ratio 40%) using dynamic DSC experiments with heating rates 2.5,5,10,15 and 20°C/min, were done by Kissinger, Ozawa methods to determine kinetic parameters.Activation energy was obtained with Kissinger and Ozawa methods ,85.32 and 88.02 kJ/mol respectively.Also pre-exponential factorswere3.35 × 10 +8 and 7.4 × 10 +8 1/sec respectively.The order of curing reaction ramained almost constant.Thus, the effect of the heating rate on the reaction orders was not significant and the overall reaction order under both isothermal and dynamic conditions was the same (m+n=3.3).Mechanical properties of the selected sample (molar ratio 40%) compared with a reference sample(without anhydride) were measured.Young modulus of the sample increased 19% while tensile strenght remained constant.Flexural strength and flexural modulus increased 34% and 9%. respectively.Also, one of the most important property of thecomposites , inter laminar shear strength , increased about 26%. Keywords: Cure kinetic, Epoxy resin, Nadic methyl anhydride, Dicyandiamide, Composite, Mechanical properties