Abstract：Objective：To observe the clinical efficacy of Guyuan Shengti Decoction combined with bioelectrical stimulation in treating pelvic floor dysfunction （PFD） of middle qi sinking type. Methods：A total of 60 PFD patients of middle qi sinking type who attended the gynecology outpatient department of the First People's Hospital of Jiashan from June 2024 to June 2025 were enrolled and randomly divided into a control group and a combination group using a random number table method， with 30 cases in each group. The control group received bioelectrical stimulation， while the combination group received Guyuan Shengti Decoction in addition to bioelectrical stimulation. Both groups were treated for four weeks. Clinical efficacy was evaluated. Surface electromyographic signals of pelvic floor muscles （typeⅠand type Ⅱ pelvic floor muscle fiber potentials）， quality of life [Pelvic Floor Impact Questionnaire Short Form 7 （PFIQ-7） score]， urodynamic parameters （maximum cystometric capacity， detrusor pressure at maximum flow rate， maximum urinary flow rate），and PERFECT scale indices were compared before and after treatment. Results：The total effective rate was 93.33% （28/30） in the combination group， significantly higher than that of 73.33% （22/30） in the control group （P＜0.05）. After treatment，typeⅠand typeⅡpelvic floor muscle fiber potentials increased in both groups （P＜ 0.05），with significantly higher values in the combination group than in the control group （P＜0.05）. PFIQ-7 scores decreased in both groups after treatment （P＜0.05），with a lower score in the combination group （P＜0.05）. Maximum cystometric capacity，detrusor pressure at maximum flow rate，and maximum urinary flow rate increased in both groups after treatment （P＜0.05），with higher values in the combination group （P＜0.05）. PERFECT scale indices improved in both groups after treatment （P＜0.05）， with better outcomes in the combination group （P＜0.05）. Conclusion： Guyuan Shengti Decoction combined with bioelectrical stimulation can effectively improve therapeutic outcomes in PFD of middle qi sinking type，enhance pelvic floor muscle function，and improve patients' quality of life.