Objective　To explore the effect of an modified diorthosis on upper eyelid relaxation in old age.　Methods　One hundred and thirty-six cases of patients with the modified diorthosis on upper eyelid relaxation from June 2016 to March 2019 were collected. An incision line ACBDA with the appearance of "dolphin-like" incision was designed. Point A was located at the lower edge of the eyebrows about 0.5~1 cm. Point B was on the extension line of connecting line between the ipsilateral nasal alar and the lateral canthus. A vertical line at lateral canthus angel E and arc line AB was intersecting at point A.  Two equidistant points C and D above and below point O were set. Point B was flexible according to the degree of crow’s feet. The eyebrow and part of the eyebrow body were preserved, and the inner eyebrow tail and the surrounding skin in the ACBDA line were completely resected, the eyebrow fat pad was lifted and fixed, the orbicularis oculi muscle on the lower brow was suspended and fixed, the cosmetic incision was sutured by layers.    Results    No blepharochalasis and crow's-feet occurred within 6 months after follow-up, and the result of operation was satisfactory. There were 46 cases on 6 months to 12 months follow-up, and 4 cases with skin ptosis of lateral canthus and upper eyelid. The remaining surgical results were satisfactory.    Conclusions     The modified diorthosis on the upper eyelid relaxation is simple. It is a good method to correct severe upper eyelid relaxation in the elderly and is worthy of clinical application.