Objective To evaluate the improvement effect and safety of hyaluronic acid supraorbital ridge injection combined with nasal filling on the light and shadow aesthetics and stereoscopic degree of the mid-face T-zone (supraorbital ridge-nasal root-nasal bridge area). Methods A total of 78 subjects who received mid-face T-zone aesthetic improvement in Kunshan Lingmei Oriental Medical Cosmetology Clinic from January 2023 to January 2025 were selected, and they were divided into group A (39 subjects) and group B (39 subjects) according to different injection methods. Group A received hyaluronic acid nasal filling, and group B received hyaluronic acid supraorbital ridge injection combined with nasal filling. The objective indicators of mid-face T-zone, light and shadow aesthetics indicators, satisfaction and adverse reactions were compared between the two groups. Results At 1 and 6 months after operation, the supraorbital ridge height, nasal root height and nasal bridge height of group B were higher than those of group A, and the frontonasal angle was smaller than that of group A (P <0.05). The light and shadow contrast of supraorbital-nasal angle in group B at 1 and 6 months after operation was higher than that in group A (P <0.05). The satisfaction rate of group B (94.87%) was higher than that of group A (82.05%). There was no statistically significant difference in the incidence of adverse reactions between the two groups (P >0.05). Conclusion Compared with simple hyaluronic acid nasal filling, hyaluronic acid supraorbital ridge injection combined with nasal filling can better enhance the stereoscopic degree of the mid-face T-zone, optimize the light and shadow aesthetics effect, improve satisfaction, and has good safety, which is worthy of clinical application.