Objective To describe the level of fear of cancer recurrence (FCR) and its associated factors in convalescent young breast cancer patients. Methods Two hundred young breast cancer patients were investigated by the use of general data questionnaire, the Fear of Progression Questionnaire-Short Form (FoP-Q-SF), Distress Disclosure Index (DDI) and Short Marital Adjustment and Prediction Test. Results The score of FoP-Q-SF averaged 36.53±7.26, and 112 cases （56.00%） had a FCR score≥ 34. Multiple linear regression analysis indicated occupation status, course of disease, cancer staging, recurrence or metastasis, self-disclosure, and marital adjustment and prediction were factors affecting FCR （P＜0.01 for all）. Conclusion The prevalence of FCR was common in convalescent young breast cancer patients. Encouraging self-disclosure and improving couple intimacy can alleviate FCR of patients.