rstly,its development status has the features of the advantage to be centralized,the district to be suited,the time and space to be enlarged and the resource to be inte铲ated. Second— ly,it mainly shows the trends of pmmoting students 7development as the ultimate goal,expanding the leaming options as the emphasis and standardizing inf0Ⅱmunication and online teaching&leaming as the basic security.At last,based on the China台actualРsituation,this study discusses the implications in terms of development objectives,development path and sustainable development for flJrther developing K一12 online learning in China,in order to proVide some refIeI℃nce for China§K一12 online leanling development and improvement.РKey words:U.S.;K一12 0nline Learning;Development Statu8;Development,Ihnds;ImplicationsР万方数据