Temperature may negatively affects human performance rate and human physical response if it is not properly controlled. Effects of temperature on task performance and its contribution to the occurrence of thermal comfort had been a major focus in hundreds of studies. However, until now inconsistent results were yielded from those studies. This paper presents the literature review of the researches on the effects of temperature on task performance. To gain better understanding, thermal comfort issue and task performance also have been reviewed. Conclusively, there are some researches which have proved that the variations in temperature levels can affect task performance and thermal comfort, while some researchers disagreed with the finding.