A simple type dual axes optoelectronic level includes a carrier, an adjustable fixing mechanism, a level sensing device, a container cup holding a liquid, and a reflector. The adjustable fixing mechanism and the container cup are fixed at the carrier. The level sensing device is fixed at the adjustable fixing mechanism and faces the container cup. The reflector is fixed at the bottom surface of the container cup. The level sensing device provides a measuring light beam, which is refracted by the liquid surface to the reflector, and reflected back to the liquid surface by the reflector, and refracted again by the liquid surface to the level sensing device. Through the refraction effect, the level sensing device can detect two angles between the bottom surface of the carrier and the liquid surface. The dual axes optoelectronic level has advantages of simple structure, low cost and differentiating angles of two axes.