Abstract:Both photoelectricity information sensing and photoelectricity energy conversion are important key technologies for constructing wisdom earth and green earth.According to the development trends of current photoelectricity information sensors and photoelectricity energy conversion devices,we ought to make great efforts to develop large-scale focal plane array;to increase working temperature of infrared sensing devices,and develop room temperature working devices;to extend photoelectric sensors response band,and develop multiband devices;and to develop a great variety of sensing technologies,such as light,heat,electricity,magnetism,molecule,quality,stress and single photon sensors.This paper also presents some views on how to develop solar power photovoltaic cells.