There is disclosed a porous material containing aggregates; and a composite binding material which binds the aggregates to one another in a state where pores are formed and in which mullite particles that are reinforcing particles are dispersed in cordierite that is a binding material, and a content of metal silicon is smaller than 15 mass %. Preferably, to a total mass of the aggregates, the composite binding material and the metal silicon, a lower limit value of a content of the composite binding material is 12 mass %, and an upper limit value of the content of the composite binding material is 50 mass %. Preferably, to the total mass, a lower limit value of a content of the mullite particles is 0.5 mass %, and an upper limit value of the content of the mullite particles is 15 mass %. A porous material having a high thermal shock resistance is provided.