This Study was designed to find out Students misconception in heat and temperature. It was conducted by administering a questionnaire to 53 students from different major and manner (physics, chemistry, biology, and mathematic). In faculty of education Al.fateh university. The results were analyzed by (SPSS) (subject package for social science) to identify Students’ misconception on heat and temperature. The findings revealed that most of the students held alternative conceptions of heat and temperature. Finally, Implications and Suggestions for the Teacher for Teaching and Learning.