The present research is an experimental study the heat transfer characteristics of thermosyphon with current application of thermosyphon respond to the diverse needs and the maximum benefit. Is interested to study the characteristics of thermosyphon so.The angle worked best 60 70 80 90o. The idea is to bring the pipe a case modifying the inclination angle of evaporator and condenser sections 0 60 90o as shown in Fig. 2 by adjusting the tilt angle of the adiabatic section stable angle. 70O.The result of the study can be guided in the research and development can be applied in the other side. operating temperature, working fluid and also inclination angle. Results may provide further information for improve the performance of the thermosyphon.