Abstract: Objective To investigate the method of determining the occlusal plane front point of complete denture and the photoelastic effect. Methods The study time was from February 2015 to July 2017. 10 patients with dentition defect diagnosed and treated in our hospital were selected as the research objects. The occlusal plane anterior point of the complete denture was determined by the Gothic arch apex(A group) and natural trajectory bite(B group). The denture occlusal index, photoelastic effect and stress were recorded and detected. Results Before the occlusal adjustment, the occlusal contact time in A group was more than B group, while the percentage difference of occlusal force between left and right sides, the distance from the center of the occlusal force to the center line were less than B denture group, and there was statistical significance (P＜0.05). After occlusal adjustment, the above indexes were compared between the two groups, while there was no statistical significance (P＞0.05). The angle between the working angle of the cusp and the occlusal plane in the two group showed tendency of going farther. The adjacent angle difference also had the tendency to increase in the far distance, and there was no significant difference between the two groups (P＞0.05). The light elastic materials of A group and B group were all to meet the basic requirements of model experiment. Lingual concentrated jaw centric occlusion and anterior occlusion of two groups were less than the maximum stress value of anatomic occlusal (P＜0.05), and there was no difference between the two groups (P＞0.05). Conclusion The Gothic arch vertex and natural trajectory bite which determine the occlusal plane anterior point of complete denture can maintain the denture occlusal balance, and the Gothic arch vertex which determines the occlusal plane anterior point can achieve better occlusal relationship.