Abstract:Objective To explore the effects of personality analysis-based cognitive emotion regulation combined with health behavior management on coping styles, cognitive degree and self-management ability of patients with coronary heart disease (CHD） after percutaneous coronary intervention (PCI). Methods A total of 122 patients with CHD who underwent PCI in Xijing Hospital from April 2020 to June 2022 were randomly divided into study group (n=61) and control group (n=61). Patients in control group were given routine nursing combined with health behavior management intervention, and patients in study group were given personality analysis-based cognitive emotion regulation intervention on the basis of the control group. The coping style ［Medical Coping Modes Questionnaire (MCMQ)］, cognitive degree ［Montreal Cognitive Assessment (MoCA), Cognitive Emotion Regulation Questionnaire (CERQ)］, self-management ability ［Coronary Heart Disease Self-Management Behavior Scale (CSMS), Self-Care Ability Scale (ESCA)］, health behavior ［Health Promoting Lifestyle Profile-Ⅱ （HPLP-Ⅱ）］ and the occurrence of adverse events during the intervention were compared between two groups. Results After 1 month intervention, the facing score of MCMQ, MoCA, the adaptive emotion regulation score of CERO, CSMS, ESCA and HPLP Ⅱ in study group were higher than those in control group (P＜0.05), while the yielding and avoidance score of MCMQ were lower than those in control group (P＜0.05), and the scores of study group were better than those of control group (P＜0.05). During intervention, the total incidence rate of adverse events in study group was lower than that in control group (4.9% vs 16.4%, P＜0.05). Conclusion Cognitive emotion regulation based on personality analysis combined with health behavior management can effectively improve the coping style and cognitive degree of patients with CHD after PCI, improve self-management ability, and effectively reduce the incidence of postoperative adverse events.