A laser transceiving module (100) and a LIDAR (200), relating to the technical field of LIDAR. The laser transceiving module (100) comprises: a housing (10), an emission module (1) fixed inside the housing (10), a beam splitting module (2) and a reception module (3). An emergent light signal emitted by the emission module (1) passes through the beam splitting module (2) and then is emitted outward, and is reflected by a target object (300) in a detection region and then returns a reflected light signal, the reflected light signal being received by the beam splitting module (2) and deflected, and then being received by the reception module (3). A light absorbing structure (5) is provided between the emission module (1) and the beam splitting module (2), the light absorbing structure (5) being used to prevent the emergent light signal reflected by the beam splitting module (2) from radiating towards the reception module (3). The laser transceiving module (100) is able to reduce the impact of stray light inside itself on its own detection capability.
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