LED illuminating lamp fixing device capable of achieving maintenance and replacement conveniently

The invention discloses an LED illuminating lamp fixing device capable of achieving maintenance and replacement conveniently and relates to the technical field of lamp fixing devices. The LED illuminating lamp fixing device comprises a fixing rod, the fixing rod is connected with a lamp body mounting base through a bendable connecting piece, and a lamp body is fixedly mounted on the bottom surfaceof the lamp body mounting base. Two clamping-connection columns are symmetrically mounted on the lamp body mounting base. Each clamping-connection column comprises a column body, a clamping column, an inner rod body and a second spring, wherein the column body is provided with an inner cavity, the inner rod body is mounted in the inner cavity slidably, a limiting ring is arranged on the circumferential side face of the inner rod body, one side of the limiting ring is sleeved with the second spring for pushing the inner rod body to move upwards, a through hole communicating with the outside isformed in the top end of