The tensile and shear properties of porous rock-like materials affect the safety and stability of engineering. In this paper, numerical models with different number of pores were constructed, and the numerical simulation of direct tensile and direct shear tests were carried out by the DEM to explore the influence of the pore number on the tensile and shear characteristics of materials. The results show that the tensile strength, the ratio of compressive strength to tensile strength, cohesion and internal friction angle decrease in different forms with the increase of the pore number. In addition, under tensile action, cracks are mainly formed along the horizontal direction and are not affected by the number of pores. Under shear action, cracks are mainly formed along a certain Angle with the horizontal direction. The increase of the pore number mainly leads to the decrease of the anisotropy of fracture occurrence under shear action.