The purpose of this study is to define a description of the various conceptions and misconceptions of pre-service physics teacher about the concept of light in basic physics courses. This research was conducted on 96 students of a pre-service physics teacher in one of the state universities (PTN) in Makassar. The mixed method was used in this study. Data collection in this research is through observation, test, analysis of test results, limited interviews, and analysis of data by quantitative and qualitative. The result of this research is found the misconception of pre-service physics teacher about the concepts of physics, especially about the concept of light. This shows that the low understanding of the concept of preservice physics teacher to the basic concepts of physics, causing misconception. Therefore , that misconceptions are defined an information to develop a continuous research that can contribute to improving the quality of teachers candidates, especially physics teachers who will give a positive impact on improving the quality of education, especially in Indonesia by developing a programming of basic physics course oriented conceptual change to eliminate a misconceptions on pre-service physics teacher).