Abstract: A removable desk lamp includes a base, a lamp post, and a lamp holder. A bottom end of the lamp post is engaged with the base, and a top end of the lamp post has a plurality of first terminals. The lamp holder includes a housing, a lighting unit arranged in the housing, a rechargeable battery arranged in the housing. An end of the housing is engaged with the top end of the lamp post in a pluggable state or in an unpluggable state and including a plurality of second terminals. When the end of the housing is engaged with the top end of the lamp post, the first terminals abuts against and electrically connects with the second terminals, the lighting unit and the rechargeable battery are supplied power via the first terminals; when the end of the housing is disengaged from the top end of the lamp post, the first terminals are disconnected from the second terminals, the rechargeable battery supplies power to the lighting unit.