The concept of“human and nature are the life community” is the enrichment and development of the concept of “mountains, rivers, forests, farmlands, lakes, grasslands and sands are the life community”. In essence, the concept advocates a human-principal nature-society compound ecological system, or a territorial space ecosystem. To study the role and significance of the concept of “human and nature are the life community” in ecological restoration for territorial space.On the basis of the elaboration for the connotation of the concept , a multi-layered and systematic ecological restoration pattern for the territorial space is put forward, and ecological restoration strategy and measures are formulated in respect of the 4 step-by-step, independent and interconnected levels: element, system, management and culture by taking Dongting Lake Area as the example.