The invention discloses a skeleton-staggered sweep. The sweep comprises a sweep surface (1) and a skeleton for supporting the weep surface (1), wherein the skeleton comprises a plurality of transversepanels (6), a plurality of longitudinal panels (7) and oblique panels (8), the transverse panels (6) are arranged at intervals, the longitudinal panels (7) are vertical to the transverse panels (6) and are arranged at intervals, and the oblique panels (8) are arranged in grids surrounded by the transverse panels (6) and the longitudinal panels (7) and are mutually staggered; and the skeleton is divided into a sweep surface middle skeleton (2), a sweep surface top end skeleton (3), a sweep surface bottom end skeleton (4) and sweep surface two-side skeletons (5). According to the skeleton-staggered sweep, the welding workload and the weight of the sweep surface are reduced in the premise that the steel is saved; by distributing the gaps among skeleton structures in the middle and end part of the sweep surface, the utilization rate of the steel is increased; and the construction and processing processes are simplified, the weight is reduced, the welding workload is reduced, the cost is low, and the strength is high. The skeleton-staggered sweep has the advantages that the requirement on the structural strength is satisfied, and the weight can be controlled.