This invention relates to a femoral stem of artificial hip joint, comprising a pillar protrudingly disposed with multiple transverse and vertical protruding ribs to surroundingly form multiple receiving spaces therebetween. In at least a receiving space, a three-dimensional mesh body is disposed, which has multiple micropores multilayeredly stacked radially toward the pillar center and communicated with each other, enabling the regenerated bone cells to flee into and grow between each layer of micropores after the pillar is implanted into the femoral body, so as to enable the pillar to be fully fused and entangled with the femoral body integrally, thereby being tightly fastened in the femoral body of the patient.
