The invention discloses an indoor reading lamp supplied with electric energy independent of a power system, which comprises a polycrystalline silicon solar plane skylight, a battery and an LED illuminating lamp. The indoor reading lamp is characterized in that: the polycrystalline silicon solar plane skylight is arranged at the top end of a randomly-bendable pole and wire which can be lifted out of a window; the LED illuminating lamp and a control switch on the LED illuminating lamp are arranged at the top end of another randomly-bendable lamp pole and wire; and the two randomly-bendable lamppoles and wires can be connected with the chargeable and dischargeable lithium battery and an electronic element component which are arranged on a base by the wires in the randomly-bendable poles to form a self-power supply system which can perform solar daylighting power supply, electric energy storage, discharge, light emission and illumination. The reading lamp can be randomly moved on floors in rooms of houses and can meet illumination requirements only by lifting the end, with the polycrystalline silicon solar plane skylight, of the reading lamp out of the window for daylighting. Therefore, solar illuminating technology can be utilized in families of ordinary people.