Objective:To understand the status of health tenacity level, coping style and social support in patients with breast cancer after surgery, and to analyze the correlation among the three, so as to provide theoretical basis for formulating intervention measures to improve health tenacity.Methods:This study adopted descriptive correlation research design and non-random convenient sampling method. A total of 195 breast cancer patients were investigated by health tenacity questionnaire (Rhll-24), coping style questionnaire (SCSQ) and social support rating scale (SSRS). SPSS17.0 software package was used for statistical analysis of data.Results:The total score of health tenacity was 84.79±11.27; the score of positive coping style was 2.09±0.56; the score of negative coping style was 1.53±0.46; the total social support score was 40.07±8.58.The correlation between positive coping and health tenacity was statistically significant (P<0.05).Negative coping was negatively correlated with health values, endogenous health control concept and health tenacity score. The correlation between the total score of social support, subjective support and the utilization degree of support and the total score of health tenacity was statistically significant (P<0.05).Conclusion:The health tenacity of patients with breast cancer in this group was above the medium level. They tended to adopt positive coping styles and had higher social support. The more positive coping styles patients adopted and the more social support they received, the higher their level of health tenacity was.Therefore, in the future clinical nursing work, patients should be encouraged to adopt positive coping methods, attach importance to evaluating the social support needs of patients and take targeted nursing measures, so as to effectively improve the health tenacity of patients.