Abstract： Objective To explore the effect of intense pulsed light and carbon dioxide fractional laser in preventing early scars after facial cosmetic suture surgery.Methods From May 2022 to May 2023,we used a randomized controlled analysis method to divide 36 patients with facial trauma who underwent cosmetic suturing surgery into two groups,with 18 cases per group.Control group:silicone gel was used to prevent scar after cosmetic suture.Treatment group:based on the control group,IPL and carbon dioxide fractional laser treat-ment were immediately performed after suture removal,and the scar condition and satisfaction score of the two groups of patients were ob-served.Results The study found that there was no significant difference in the conditions of the two groups of patients before the treat-ment intervention(P>0.05);the conditions of the two groups were different after the treatment intervention,the difference was significant,(P<0.05).The satisfaction of patients in the treatment group was much higher than that of patients in the control group(P<0.05).Conclu-sion The use of intense pulsed light and carbon dioxide fractional laser for clinical treatment can have a good therapeutic effect.The early postoperative scar condition of patients can be improved,and it is also beneficial to their prognosis.It is worthy of promotion and application.