目的调查维持性血液透析(maintenance hemodialysis,MHD)患者水盐控制行为的阶段变化情况和社会支持情况，探讨社会支持对患者水盐控制行为转变的影响，为实施有效的护理干预提供依据。方法采用行为阶段转变问卷和社会支持评定量表调查104 名门诊MHD 患者的水盐控制行为和社会支持状况。结果患者水盐控制行为阶段分布为无意识阶段16%、有意识阶段10%、准备阶段19%、行动阶段14%、维持阶段40%。患者的社会支持水平36.35±10.67 高于全国常模(34.56±3.73)，不同行为阶段患者的社会支持水平差异有统计学意义(F=2.888 P＜0.05)，同时婚姻状况也影响患者的水盐控制行为(χ2=6.359，P＜0.01)。结论MHD 患者所获得的社会支持水平影响其水盐控制行为阶段。处于行动阶段和维持阶段的患者主观支持和社会支持水平更高，血液透析护士提供水盐控制指导和干预时应重视社会支持情况对患者的影响。

Objective To investigate the stages of the maintenance hemodialysis patients’volume control behavior and social support status,and to explore the influence of social support on patients’volume control behavior. Method Using TTM volume control behavior questionnaire and SSRS to investigate the volume control behavior and social support status of 104 MHB patients. Result 16% patients are in uncontemplation stage,10% patients are in contemplation stage ,19% patients are in preparation stage, 14% patients in action stage,40% patients are in maintenance stage. The score of social status is 36.35±10.67，the patients social status score are significant different in different stages (F=2.888 P＜0.05),and the marriage status also influence the volume control behaviors of patients(χ2=6.359，P＜0.01). Conclusion The social status of MHD patients has influence their volume control behavior, HD nurses should provide volume control interventions and support to the patients to maintain good volume status.