Abstract: During the epidemic period, a lot of achievements have been accumulated in online Chinese learning in primary schools. It is worth thinking about how to transform the achievements into the driving force of information education practice after the epidemic. Reading and language practice activities based on reading are the key path to cultivate primary school Chinese core literacy. Online language learning activities in primary schools provide strong support for intensive reading, skimming and the whole book reading extracurricular links. Based on the activity theory, the elements of online learning activities and the design principles of online learning activities, this study designs the online learning activities in primary schools of Chinese intensive reading, skimming and the whole book reading, and puts forward suggestions for its practical application.