<p>Aluminum honeycomb core is a high-quality lightweight composite material. Its unique structure and excellent performance make it widely being used in many fields, especially in the aerospace field. However, aluminum honeycomb core is prone to defects when processed using traditional methods, resulting in performance degradation and other problems. In order to solve these problems, this research adopts the technology of longitudinal-torsional composite ultrasonic vibration-assisted cutting (LT-UVC) to process aluminum honeycomb core. Firstly, according to the motion characteristics of longitudinal-torsional composite ultrasonic vibration (LT-UV), the motion equation of a certain point on the tool and the cutting force model in the horizontal direction are established. Then the finite element simulation is carried out to predict the feasibility of the experiment. By comparing the cutting effect of different angles of cutting tools in LT-UVC and conventional cutting (CC) state, it is found that there are significant differences in cutting force and surface quality. The experimental results show that better surface quality and lower cutting force can be obtained when using small angle tool in LT-UVC state. The results validate the accuracy of the proposed theoretical model of cutting force. Given the difference in strength of the tool at different angles, the wear degree of the tool eventually presents different results.</p>