The invention relates to the technical field of container manufacturing, and particularly relates to a telescopic flaw detection platform. The telescopic flaw detection platform includes a first base (1.1), a second base (1.2), a third base (1.3), a fourth base (1.4), a stud (2), a first connecting rod (3.1), a second connecting rod (3.2), first turning wheel assemblies (4.1), second turning wheel assemblies (4.2), walking wheels (5), a connecting shaft (6), a first gear set (7.1), a second gear set (7.2), a first worm reduction gear (8.1), a second reduction gear (8.2), a third reduction gear (8.3), a first adjustable-speed motor (9.1), a second adjustable-speed motor (9.2), a third adjustable-speed motor (9.3), and a coupling (10). The invention has the advantages that spacing and neutral can be adjusted according to the actual size specifications of a container, so as to meet manufacturing requirements of a variety of specifications of containers.