Abstract: A novel mixed mode biquad filter based on MOCCCII(multiple outputs current controlled conveyor) is presented.The filter structure presented simply contains 5 active elements and 2 grounded capacitors,without using any external resistors.The voltage-mode filter,current-mode,trans-admittance and trans-impedance filter can be realized without changing internal circuit structure and various kinds of filter functions such as high-pass,band-pass,low-pass can be obtained in each mode,thus the circuit is versatile.Experiment for actual circuit is conducted and the results show that the proposed circuit is valid and effective.