A modular plumbing robot according to an embodiment of the present invention includes an image capturing module; A traction module coupled to the image capture module for pitching and rolling rotation and providing traction for movement; A non-destructive flaw detection module connected to the traction module by a plurality of pitching and a plurality of rolling rotatable non-destructive flaw detection modules; A rotating joint configured to allow pitching and rolling rotation; And a dual joint in which a rotating joint is connected to allow a plurality of pitching and a plurality of rolling rotations. According to an embodiment of the present invention, it is possible to provide a modular piping robot that is modularly provided so that the refractive index can be adjusted according to the shape of the piping, thereby facilitating the separation and assembly.
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