To investigate the influencing factors of the compliance of women with postpartum stress urinary incontinence (PSUI) for the pelvic floor muscle functional exercise. Methods: 162 women with PSUI who visited the doctor were selected by convenient sampling from May 2021 to May 2022. The questionnaires of general data and pelvic floor muscle functional exercise compliance, and Edinburgh Postpartum Depression Scale (EPDS), Pittsburgh Sleep Quality Index (PSQI), and the Chinese version of broome pelvic muscle self-efficacy scale (BPMSES) were used for survey. Pearson correlation coefficient model was used to analyze the correlation between the compliance of the pelvic floor muscle functional exercise of the women with PSUI and their EPDS, PSQI, BPMSES scores. Multiple linear regression model was used to explore the factors related to the compliance of the pelvic floor muscle functional exercise of the women with PSUI. Results: A total of 162 questionnaires were distributed in this study, and 156 valid questionnaires were returned, with an effective recovery rate of 96.3%. The scores of the compliance questionnaire of the pelvic floor muscle exercise, the EPDS score, the PSQI score, and the BPMSES score of the women were 9.62±3.89 points, 7.24±2.85 points, 5.51±2.04 points, and 52.03±18.41 points, respectively. There was statistically significant difference in the score of the compliance of the pelvic floor muscle functional exercise among the women with different education levels, among the women with different family per capita monthly income, among the women with different cognition of the importance of maintaining pelvic floor muscle functional exercise, among the women with different current situation of urine leakage, or among the women with different support status by spouse (P＜0.05). Pearson correlation analysis showed that the compliance score of the pelvic floor muscle functional exercise of the women with PSUI was negatively correlated with their EPDS score and PSQI score and was positively correlated with their BPMSES score (all P＜0.001). Multiple linear regression analysis showed that the cognition of the importance of maintaining pelvic floor muscle function exercise, the current urine leakage, the poor support by spouse, and the scores of EPDS, PSQI, and BPMSES were all the influencing factors of the compliance of the pelvic floor muscle function exercise of the women with PSUI. Conclusion: There are many factors affecting the compliance of the pelvic floor muscle function exercise of the women with PSUI, so which should be paid more attention to by the medical staff，and the targeted intervention should be conducted.