Online learning community has become the prevalent unit to achieve the goal of emotional support and academic improvement. In terms of social communication, online community can not only support interpersonal communication, but also promote the creation of positive learning environment and community culture. The article mainly adopts the method of theoretical analysis and practical reflection, introducing some concrete strategies for establishing and operating online learning communities with open dialogue according to the author’s real practice on three learning platforms. The article follows the principle of real learning starting from dialogue teaching. As a result, the design and guidance strategy, the organization and feedback strategy are proposed to create the framework of online dialogue teaching, to inspire the participation of every community member, and to enhance the quality of multi-sided dialogue interaction. These strategies applied into online teaching activities have actually achieved something and online dialogue teaching is going on enthusiastically and skilfully. All these above teaching practices turn out that dialogue teaching can be regarded as the principal online teaching method, and it is of great value to explore this pioneering method unceasingly.