It is especially important for commercial banks to carry out interest rate risk management scientifically in a changing market. Hedging by interest rate futures can be effective in helping the bank to avoid interest rate risk. To determine the optimal futures hedge ratio is the focus in trading a reasonable amount of futures contracts. To some extent, the establishment of a representative and available of non-linear mean variance model could help commercial banks to find the futures hedge ratio and then do perfect in interest rate risk management.