The invention discloses an LED lighting lamp convenient to install. The LED lighting lamp comprises an upper lamp body and a lower lamp body used for being connected with the upper lamp body in a matched mode, an installing cavity is formed in the upper lamp body, a connecting conductive column is arranged in the installing cavity, the end face of the top of the connecting conductive column is fixedly connected with the top wall in the installing cavity, the front end face of the connecting conductive column longitudinally extends and is provided with a groove, a threaded rod is arranged in the groove, the top end of the threaded rod is in power connection with a motor, and a driving sliding block is connected with the threaded rod in a threaded-fit mode; a movable block is connected to the outer side of the connecting conductive column in a sliding mode, the driving sliding block is fixedly connected with the movable block, first bevel bumps are arranged at the two sides of the movable block respectively, locking connecting grooves are symmetrically formed in the portion, located at the inner sides of the first bevel bumps, of the movable block, elastic connecting rods extending upwards are symmetrically arranged in each locking connecting groove, an arc bump stretching into the corresponding locking connecting groove is arranged at the top of the inner side of each elastic connecting rod, an inserting groove extending upwards and penetrating through the top wall in the movable block is formed in the side, away from the locking connecting groove, of each elastic connecting rod, and inserting rods are arranged at the top, opposite to the inserting grooves, in the installing cavity.