The present invention is to provide a method for manufacturing a porous bone graft material capable of realizing a three-dimensional block type pore structure which are connected to each other, and controlling the size, porosity and the pore size of particles. A method for manufacturing a porous bone graft material according to the present invention comprises the following steps: preparing ceramic paste including calcium phosphate-based ceramics preparing a molded body molding the ceramic paste based on a three-dimensional high-speed molding method drying the molded body and sintering the dried molded body.COPYRIGHT KIPO 2018