This study investigates the determinants on the components of mutual fund fees. We find out that different types of mutual fund fees are determined by different factors. On average, the cost ratio of mutual funds is negative correlated to the number of institutional beneficiary and turn over on accumulated selling orders. The mutual fund fees would reduce because institutional investors have more bargaining powers on cost than individual investors, the declining average of fixed cost and underperformance will enforce the mutual funds to sell out. On the contrary, the large number of buying trades or the huge amounts of buying trades would increase the mutual fund fees. The risk performance of the fund is individually affected by different fund fees. The results of this study did not find that fund fees have a significant consistency effect on fund performance.