The present disclosure discloses a high-strength lightweight automobile compartment tonneau cover, including a top cover, a front cover, a first side cover, a rear cover, and a second side cover; a top of the front cover, a top of the first side cover, a top of the rear cover, and a top of the second side cover are respectively connected to an edge of the top cover; the front panel frame body includes four front panel profiles, two front panel upper end sockets, and two front panel lower end sockets; the four front panel profiles are respectively arranged on four sides of the front panel, and the top cover can be adjusted according to a size of a compartment; and integrally molded profiles are used, which improves the structural stability.