Objective To discuss the relationship between calf muscle pump function and chronic venous insufficiency(CVI).Methods This summarized paper was made on literature review. Results Calf muscle pump function was studied by air plethysmography,straingauge plethysmography，intramuscular pressure，calf muscle pump efficiency，foot mercury straingauge plethysmography，isotope plethysmography，and digitized photo plethysmography.The calf muscle pump function of patients with CVI decreased apparently and can be markedly improved after proper treatment. Conclusion The relationship between calf muscle pump function and CVI is apparent.