An assemble mechanism of strip LED lamps, comprising: at least two strip houses of two strip LED lamps to be connected together, each of the strip houses having a U-shaped groove and two slots opened two side walls thereof respectively; at least two covers, the two covers being arranged onto the two strip houses respectively; and at least one coupling assembly, the coupling assembly being configured for connecting two strip houses together, the coupling assembly comprising a plug disposed at one end of one of the strip houses and a socket disposed at the other end of the strip houses and connected to the plug so that the two strip LED lamps are connected together, wherein an electrical connection is achieved, the plug comprising a plug-body fixed on the strip houses, and a T-shaped head extending from the plug-body, the T-shaped head comprising a straight bar connected to the plug-body, a horizontal bar extending from the side walls of the straight bar, and two wedge structures provided on two side walls of the straight bar respectively, the socket comprising a socket body fixed on the strip houses, and a T-shaped cavity extending from the socket body configured for receiving the T-shaped head, and two catches provided on two inner side walls of the T-shaped cavity respectively and configured for clamping the wedge structures, characterized in that each of the covers comprising two bar-typed pins extending from an inner wall thereof, the two bar-typed pins being inserted into the two slots respectively, and that the coupling assembly is made of plastic, and that two steps are formed between the wedge structure and the straight bar, the two catches are engaged on the two steps respectively. at least two strip houses of two strip LED lamps to be connected together, each of the strip houses having a U-shaped groove and two slots opened two side walls thereof respectively; at least two covers, the two covers being arranged onto the two strip houses respectively; and at least one coupling assembly, the coupling assembly being configured for connecting two strip houses together, the coupling assembly comprising a plug disposed at one end of one of the strip houses and a socket disposed at the other end of the strip houses and connected to the plug so that the two strip LED lamps are connected together, wherein an electrical connection is achieved, the plug comprising a plug-body fixed on the strip houses, and a T-shaped head extending from the plug-body, the T-shaped head comprising a straight bar connected to the plug-body, a horizontal bar extending from the side walls of the straight bar, and two wedge structures provided on two side walls of the straight bar respectively, the socket comprising a socket body fixed on the strip houses, and a T-shaped cavity extending from the socket body configured for receiving the T-shaped head, and two catches provided on two inner side walls of the T-shaped cavity respectively and configured for clamping the wedge structures, characterized in that each of the covers comprising two bar-typed pins extending from an inner wall thereof, the two bar-typed pins being inserted into the two slots respectively, and that the coupling assembly is made of plastic, and that two steps are formed between the wedge structure and the straight bar, the two catches are engaged on the two steps respectively.