肺氣虛証(syndrome/pattern of lung qi deficiency),中醫証候名,屬肺虛証類,因秉質氣虛,或久病虛損,肺功能減退所致。臨床以咳嗽無力,氣短而喘,動輒尤甚,咯痰清稀,語聲低微,面白,自汗,舌質淡,舌苔白,脈弱,或伴見神疲、乏力,畏風、怯冷等為特徵的証候。[1]