The invention relates to a lotus-leaf-shaped roof comprising a daylighting roof located in the center and a metal roof body laid in a cornice mode from the outer edge of the daylighting roof to the upper portion, and annular gutters are arranged at the joint of the metal roof body and the daylighting roof and the low-lying position of the metal roof body around the roof body. The metal roof comprises steel adapters, primary and secondary purline structures, heat preservation structures laid on the primary and secondary purline structures, keel adapters, transverse and longitudinal keels and roof panels, all of which are sequentially connected with the main steel structure from bottom to top. According to the scheme, the technical problem of the connecting structure of the daylighting roof and the metal roof is solved, and the lotus-leaf-shaped roof has the advantages of good drainage effect and convenience in roof modeling; meanwhile, manufacturing cost is low, popularization is convenient, limiting is reasonable, wind pressure resistance is high, and thermal expansion and cold contraction are free; the whole roof panel is stable in performance, can be used permanently, can be widely applied to metal roof decoration of various large buildings, and meets the requirements of drainage and lighting.