Virtual world has been developed rapidly in the last decade. Immersive is an important indicator of the virtual world. Moreover, with the VR technology advanced these years, the immersive become more and more important. The realistic experience is a crucial aspect of the immersive of the virtual world. We have identified two problems made the virtual world less immersive nowadays: Discontinuity of the Virtual World Change and Nonspontaneous of the Virtual World Change. To solve these two problems, we proposed a natural selection inspire Cell Based Evolutionary Virtual World (CEVW) framework which guides the change of the virtual world to be continuous and spontaneous.