The development of three-dimensional (3D) architectures in COFs has been considered important owing to their prospective ad-vantages in high surface areas and plentiful active sites. Herein, we report the first example of a 3D COF with zeolitic network, namely the zeolitic organic framework (ZOF). By combining two kinds of tetrahedral building blocks with fixed or relatively free bond angles, ZOF-1 with the zeolitic crb net has been successfully synthesized. Its structure was determined by the single-crystal 3D electron dif-fraction technique. Remarkably, ZOF-1 shows high chemical stabil-ity, large pore size (up to 16 Å), and excellent specific surface area (~ 2785 m2/g), which is superior to its analogues with the same network, including traditional aluminosilicate zeolites and zeolitic imidazole frameworks. This study thus opens a new avenue to construct 3D COFs with zeolitic topologies and promotes the struc-tural diversity and practical applications of COF materials.