A fast-growing plant planting, shaping, carbon sequestration and comprehensive utilizing method includes: (1) planting and/or culturing fast-growing woody, herbal, algae, lichen or moss plants in a chosen land area or water body area; (2) performing cutting, harvesting or gathering when the fast-growing woody, herbal, algae, lichen or moss plants grow to the height or dimension suitable for cutting, harvesting or gathering after a period of time; (3) drying the cut, harvested or gathered fast-growing woody, herbal, algae, lichen or moss plants; (4) processing and shaping the dried fast-growing woody, herbal, algae, lichen or moss plants; (5) transporting the dried and formed biomass to a storage place for storing; and (6) comprehensively utilizing the dried fast-growing woody, herbal, algae, lichen or moss plants.