肺衛氣虛証(syndrome/pattern of lung and defense qi deficiency),中醫証候名,屬肺虛証類,因肺氣虛弱,衛表不固所致。臨床以反覆感冒,容易疲勞,動輒汗出,氣短、乏力,惡風,迎風嚏噴,涕淚俱下,舌質淡,舌苔白,脈虛無力,或伴見咳嗽,鼻塞等為特徵的証候。[1]