目的 探讨领悟社会支持在ICU护士工作压力与隐性缺勤间的中介作用。 方法 采用方便抽样的方法，于 2023年2月选取宁夏回族自治区二级及以上医院的403名ICU护士，采用一般人口学资料调查表、领悟社会支持量表、中国护士工作压力源量表、斯坦福隐性缺勤量表对其进行测评，应用AMOS 23.0软件建立模型并进行路径分析。 结果 ICU护士工作压力、领悟社会支持和隐性缺勤得分分别为（99.45±19.22）、（58.94±15.04）和（17.33±4.49）分；结构方程模型结果显示，ICU护士工作压力对隐性缺勤具有正向预测作用（β=0.16，P<0.01），领悟社会支持对隐性缺勤 具有反向预测作用（β=-0.04，P<0.01）；ICU护士领悟社会支持在工作压力与隐性缺勤间存在部分中介作用（间接效应值为0.016），效应贡献为9.09%。 结论 宁夏回族自治区二级及以上医院ICU护士隐性缺勤现象较为严重，领悟社会支持在工作压力与隐性缺勤间起部分中介作用，管理者可从工作资源角度调动ICU护士，充分挖掘和利用其社会支持资源来缓解其工作压力，减少隐性缺勤行为。

Objective To explore the mediating role of perceived social support on the relationship between work pressure and presenteeism in ICU nurses. Methods A total of 403 ICU nurses from secondary and above hospitals in Ningxia Hui Autonomous Region were selected by convenient sampling method in February 2023，and evaluated by general demographic data questionnaire，Perceived Social Support Scale，Chinese Nurses Stressor Scale， and The Stanford Presenteeism Scale. AMOS 23.0 software was used to establish a model and conduct path analysis. Results The scores of work pressure，perceived social support and presenteeism were （99.45 ±19.22）， （58.94 ±15.04） and （17.33 ±4.49），respectively. The results of structural equation model showed that the work pressure of ICU nurses had a positive predictive effect on presenteeism （β=0.16，P<0.01），and perceived social support had a negative predictive effect on presenteeism （β=-0.04，P<0.01）. There was a partial mediating effect between work pressure and presenteeism in ICU nurses （indirect effect size was 0.016），and the effect contribution was 9.09%. Conclusion The current situation of ICU nurses’ presenteeism in Ningxia is quite severe. ICU nurses’ perceived social support plays a partial mediating role between work pressure and presenteeism. Managers can mobilize ICU nurses to fully tap and use their perceived social support resources to relieve their work pressure and reduce hidden absenteeism from the perspective of work resources.