Abstract: The measuring electrical characteristics of solar cells are now routine experimentation in all university. The main content is a preliminary analysis and research of I-V characteristics. In order to expand the experiment content and further develop student’s ability，a new experiment is designed. In the new experiment，the five solar cell internal parameters (series resistance etc.)which can be used to evaluate the cell’s performance， are extracted. The results show that the cell’s current depends on the temperature weaker than its voltage. In addition，it is found that the temperature has minimal impact on the cell’s series resistance and a maximum impact on the cell’s reverse saturation current. This experiment can not only help students to master I-V characteristics and its temperature dependence，but also help students understand the temperature dependence of photovoltaic cell interior intrinsic parameters. This experiment can also cultivate students’ability to analyze and solve problems.

Key words: photovoltaic cells, internal parameter extraction, temperature effect