Abstract: Objective: To know the psychological experience of during diagnosis of 21 cases with breast cancer and provide a theoretical basis and reference for clinical nursing. Methods: Twenty-one cases with suspected breast cancer were interviewed through the phenomenological research method. The information of interview was analysed,sorted in according to Colaizzi' s analysis,and different themes were extracted. Results: Research showed that the psychological experience of all cases with breast cancer patients has a lot of in common,but there were still differences during their diagnosis. These were not timely seek medical advice,the shock of the illness,desire of life and chances,anxiety and fear,the demand of family love. Conclusions: Doctor need understand a series of psychological changes of the patients and tell the related knowledge of disease. At the same time,patient can obtain the moral support from family,especially husband as far as possible,which can help patients recast the life confidence.