Objective To explore the effect of positive psychological intervention based on PERMA model on the fear of cancer recurrence and psychological capital in breast cancer patients during chemotherapy. Methods A total of 60 breast cancer patients who received chemotherapy from November 2019 to January 2020 were divided into intervention group and control group with 30 cases in each group. The control group received routine health education. On this basis, the intervention group was given 8 times of positive psychological intervention. The general s...