A kinetic study for the Egyptian olive tree pruning residues (OTP) was performed in a nano isothermal area and the temperature ranged from 200 to 750 ^oC. The thermal behavior of OTP has been studied using a technique called (thermogravimetric analysis TGA), which measures the sample's weight loss rate as a function of temperature and time. The results of TGA showed the same results as those conducted in the proximate analysis. The study was conducted at various heating rates of 5,10 and 20 ^oC/min. The TGA experiment measurement has been used to determine the kinetic parameters, including the order of reaction and activation energy. Olive tree pruning residues in this study reached the activation energy of (59.1- 62.8- 68.9) kJ/mol. A regression model square root coefficient of (0.9859, 0.9534, 0.9631) was obtained. The kinetic data obtained may provide more useful information for a better and complete description of the pyrolysis process and clarify the availability to gasify this agricultural residue.