Abstract: Zirconia ceramics have the characteristics of high hardness and toughness, and are prone to severe fluctuations in cutting force and severe tool wear during cutting. To investigate the distribution law of milling temperature field in the system, an improved milling temperature model was established based on the heat source method. A linear regression model was used to establish a milling force model. Single factor experiments were designed with spindle speed, feed rate per tooth, and cutting depth as variables to study the distribution of the milling temperature field and the influence of cutting parameters on milling force. The results indicate that the high-temperature region of the milling temperature field is concentrated in the contact zone between the tool and the workpiece, and the highest temperature shows a trend of rising sharply at the beginning of the cutting process and then stabilizing in the later stage, the maximum value is reached when the rotational speed is 3 000 r/min, the feed rate per tooth is 0.01 mm, and the cutting depth is 0.15 mm. The three-dimensional cutting force increases approximately linearly with the increase of feed rate and cutting depth per tooth. As the spindle speed increases from 1 000 r/min to 4 000 r/min, the cutting force in the X direction increases from 9.61 N to 15.17 N and the cutting force in the Z direction decreases from 26.56 N to 21.78 N. The research results provide theoretical basis for the study of milling temperature and force characteristics of zirconia ceramics.