An object of the present invention is to provide a three-dimensional cell support that is capable of uniformly distributing cells and retaining the cells in a state without nonuniformity and is made of a biodegradable material. The present invention provides a cell support consisting of a porous body made of a biodegradable material, the porous body having the following properties:(a) a porosity from 81% to 99.99%,(b) an average pore size of 10 to 400 μm,(c) having a hole interconnecting pores, and(d) a water absorption rate from 1000% to 9900%.
