A universal chargeable electro-optical illuminating lamp includes: a housing, a lighting unit installed at the front end of the housing, a battery chamber installed in the housing, wherein at least one chargeable battery is installed in the battery chamber and connected to the lighting unit via a switching button, an movable plug installed moveably at the rear end of the housing and connected to a driving circuit device which is connected with the chargeable battery and provided in the housing, a hand grip connected moveably to the housing, wherein the movable plug is contained in the hand grip, and a manual charging device installed on the housing and connected to the chargeable battery. This invention can be used as an important lighting source, and has the advantages of environmental conservation and energy saving, and it can be charged and used under any circumstance.