The invention relates to a high-integration automobile roof with a low-peak-value energy absorption structure. The high-integration automobile roof comprises a roof outer board, a low-peak-value energy absorption structural layer and a trim panel. The low-peak-value energy absorption structural layer is of a stereoscopic structure composed of multiple unit cell bodies sequentially arranged and combined in the X direction. Each unit cell body is composed of inward-recessed quadrangular energy absorption parts evenly arranged at intervals from top to bottom and connecting boards used for connecting every two adjacent inward-recessed quadrangular energy absorption parts. Each inward-recessed quadrangular energy absorption part comprises two first transverse energy absorption parts symmetrically arranged in the horizontal direction, two second transverse energy absorption parts arranged symmetrically relative to the first transverse energy absorption parts in the vertical direction, two first vertical energy absorption parts symmetrically arranged in the horizontal direction, and two second vertical energy absorption parts arranged symmetrically relative to the first vertical energy absorption parts in the vertical direction. The roof is low in collision initial peak value, stable in energy absorption process, good in energy absorption effect and capable of guaranteeing safety andcomfort at the same time.