This research aims to synthesize Fe-Zn-Mo/MgO-Nano-HZSM-5 catalyst which is used as catalyst for hydrocracking of rubber seed oil into biofuel. The preparation of Fe-Zn-Mo/MgO-Nano-HZSM-5 catalyst was carried out using wet impregnation method with the ultrasonic wave. The synthesized Fe-Zn-Mo/MgO-Nano-HZSM-5 catalyst has 5% metal loading and metal ratio of 1:1:1 and 1:2:1, which are mesoporous …