Hierarchical structured porous ceramics have attracted tremendous research interests because of their numerous excellent properties including robust mechanical strength and large surface area. In this work, silicon carbide (SiC)-based porous ceramics with three levels of pore hierarchy are fabricated from silicon particle-stabilized foams and a subsequent one-step calcination after they were embedded with coke. Three-dimensional (3D) flexible nanofibrous network is adhered and wrapped on cell walls of porous ceramics, which is readily fine-tuned and tailored by the temperature to provide optimized pore structure. The resultant SiC-based porous ceramics present a density of 1.03 g/cm(3) at a porosity of 72% with a large quantity of hierarchical micro- and macropores. This hierarchical structure leads to robust compressive strength (23.52 MPa) and large surface area (64.32 m(2)/g). The fabrication method is straightforward and sought-after, providing a facile technical route for advanced hierarchical porous ceramics used in filtration and catalysis fields.