A three-dimensional (3D) pointing sensing apparatus may be provided. The 3D pointing sensing apparatus may include an image generation unit that may photograph a first light source and a second light source in a light emitting unit, and generate an image including an image of the first light source and an image of a second light source. Also, the 3D pointing sensing apparatus may include an orientation calculation unit that may calculate an orientation of the light emitting unit, using a size difference between the image of the first light source and the image of the second light source in the image.