The utility model discloses a staggered splicing node structure of a C-shaped double-spliced structural member, and relates to the field of photovoltaic support structural member splicing node design and the field of truss node design, and the staggered splicing node structure comprises a member main body and a plurality of through bolts; the component main body comprises a plurality of front C-shaped steels and a plurality of rear C-shaped steels, and the front end and the rear end of the through bolt respectively penetrate through the front C-shaped steels and the rear C-shaped steels to complete locking; a front splicing seam is formed between every two adjacent pieces of front C-shaped steel, a rear splicing seam is formed between every two adjacent pieces of rear C-shaped steel, and the front splicing seams and the rear splicing seams are arranged in a staggered mode. A front inner sleeve is fixedly mounted in two adjacent front C-shaped steels in a sleeving manner, and a rear inner sleeve is fixedly mounted in two adjacent rear C-shaped steels in a sleeving manner; compared with the prior art, the C-shaped double-spliced structural member has the advantages that the special structural advantages of the C-shaped double-spliced structural member are utilized, a high-strength staggered splicing node technology of the structural member is developed, the nodes are separated but not separated, the splicing purpose is achieved, and the overall continuity of the structural member is well kept.