Objective To analyze the effect of refined nursing on scar improvement in patients with early post-traumatic scar undergoing photorejuvenation. Methods A total of 40 patients with early post-traumatic scar who underwent photorejuvenation in our hospital from January to October 2024 were selected as the research subjects, and they were divided into the control group and the study group by the random number table method, with 20 patients in each group. The control group received conventional nursing intervention, and the study group received refined nursing intervention. The psychological status, scar improvement, scar long-term recovery, treatment satisfaction were compared between the two groups. Results The scores of anxiety and depression in the study group at 1 and 3 weeks after intervention were lower than those in the control group (P<0.05). The scores of VSS in the study group at 1, 2, 3, 4 and 6 weeks after intervention were lower than those in the control group (P<0.05). The excellent and good rate in the study group (90.00%) was higher than that in the control group (60.00%) (P<0.05). The satisfaction rate of the study group (100.00%) was higher than that of the control group (65.00%) (P<0.05). Conclusion The application of reffned nursing in patients with early post-traumatic scar undergoing photorejuvenation can improve scar improvement effect and scar long-term recovery, effectively alleviate patients' negative psychological status, and enhance patient satisfaction. It is worthy of clinical application.