The utility model discloses a novel modular LED (Light Emitting Diode) tunnel lamp which comprises a plurality of single LED lamp modules, a lamp support, a hanger part and a drive power module which is used for lighting the single LED lamp modules, wherein the drive power module is connected with the single LED lamp modules respectively by a power line; and the lamp support is composed of two section bars and an end cover which is locked and fixed at two ends of each of the section bars, wherein a step face used for placing the single LED lamp modules is correspondingly arranged on the inner side surface of each of two section bars, the single LED lamp module is fixed in the lamp support, and the drive power module is fixed above the single LED lamp module through bolts. The novel modular LED tunnel lamp has a simple structure and exquisite design and is convenient to maintain; a damaged single LED lamp module or a damaged drive power module can be overhauled and replaced without the need of dismounting the overall lamp, therefore, the trouble of mounting and dismounting is avoided, and the purpose of quick maintenance is achieved; besides, the novel modular LED tunnel lamp is beneficial to assembling the tunnel lamps with different powers.