PROBLEM TO BE SOLVED: To provide a greening method capable of aggressively introducing natural vegetation from a periphery of construction site without using a big size machine. SOLUTION: A greening method includes a process for stretching a vegetation base material 1, which has a function for preventing from eroding and a function for adhering and depositing a biomass, to a construction site 2 and a process for directly transplanting a biomass C from a periphery of construction site 12 to the vegetation base material 1 without sucking and collecting the biomass C which exists at the periphery of construction site 12. COPYRIGHT: (C)2010,JPO&INPIT