The utility model discloses a small floating LNG production platform which comprises a main ship body, a main deck is arranged on the top side of the main ship body, a damping plate is arranged at thebottom of the main ship body, an LNG tank cabin is arranged in the main ship body, and at least three layers of workbench containing devices and cabins are arranged in the ship body. A process deck is arranged at the top of the main deck, a floating structure is arranged on the side of the main hull between the main deck and the process deck, a vertical pipe well leading to the damping plate is arranged in the middle of the main deck, and at least three sets of positioning anchoring equipment are arranged on the edge of the main deck at equal intervals. A process treatment module, a hose winch and a hoisting device are arranged on the process deck; vertical stairway rooms and longitudinal channels are arranged at the two ends of the vertical pipe well respectively, and the three layers ofworkbenches are communicated through the vertical stairway rooms. The utility model aims to provide the small floating LNG production platform which is easy to move, can be repeatedly used, is suitable for realizing full-sea rolling development of offshore medium-water-depth marginal gas fields, and can effectively reduce the overall development investment.