In this paper we optimize the liquid crystal (LC) concentration in the polymer electrolyte for high power conversion efficiency (PCE) of the DSSC. We measured the PCE of the dye-sensitized solar cell (DSSC) as a function of the concentration rate of the liquid crystal, E7. The concentration of the LC has been mixed with 0, 5, 10, 15, and 20wt% in the polymer electrolyte, respectively. In addition, we also measured current-voltage curve for measuring the fill factor of the DSSC in each concentration of the LC material. As a result, we found that the DSSC with 10wt% of the LC concentration in polymer electrolyte can provide maximum PCE value for high photovoltaic performance in the experiment.