In response to the State Council's guidance on strengthening the construction of the anesthesia discipline,we aim to investigate the current situation of online course construction for key curriculum in anesthesiology undergraduate majors published domestically,and to explore the existing problems and improvement directions.The online survey method,content analysis method,and statistical analysis method were used to investigate the online courses of key curriculum in anesthesiology undergraduate majors.A total of 28 online courses for key curriculum in anesthesiology undergraduate education majors were included.The current situation of online course construction was investigated,and directions for improvements were proposed from the perspective of the course resource distribution,resource content,and teaching team.Online courses for key curriculum in anesthesiology undergraduate majors are relatively scarce,some course content is not updated timely,and online classic course resources are scarce.It is urgent to increase efforts in curriculum construction,optimize the teaching support environment,standardize the teaching resource management,increase the visibility of the anesthesiology profession,and promote high-quality development of online education in anesthesiology.