This paper discusses the formation process of plant community and the characteristics of community development stage.

The formation of plant communities can start from bare land or another existing community. Bare land (or barren land) refers to a lot where no plants grow, which is one of the initial conditions and places for community formation. Bare land can be divided into primary bare land and secondary bare land. Primary bare land refers to the ground that has never grown plants, or has vegetation but has been completely eliminated (including soil under primary vegetation); Secondary bare land refers to the ground where native plants grow. Although the original vegetation no longer exists, the soil conditions under the influence of the original vegetation are still basically preserved, and even the seeds or other propagules of the original plants are preserved. In these two cases, the process of vegetation formation is different. The causes of bare land mainly include topographic change, climate phenomenon, biological action and human influence. The formation of plant community is based on the spread and settlement of plant propagules, and its formation process can be roughly divided into three stages: open, unstable and stable communities.