The utility model discloses a novel scalable pipeline cleaning robot, including first body, second body, running gear, cleaning device and manipulator, first body is tandem with the second body and arranges, and links to each other through two festival universal joint. Running gear has two sets ofly, and first body is provided with a set of running gear respectively with the outside of second body. Cleaning device sets up the rear side at the second body, including cleaning dish and telescopic link, cleans the dish and links to each other at this internal first motor of second with the setting. The telescopic link has many, be the annular and evenly arrange at the edge that is cleaning the dish, each telescopic link one end with clean that the dish is fixed to link to each other, the other end all is provided with sweeping wheel. First body's front side is provided with the bracket, and the manipulator is installed on the bracket. The utility model discloses in clearance during different pipeline, can adjust through the length of telescopic link, realize being applicable to the tapered pipeline that the structure is complicated to the cleaning of the pipe inner wall of different diameters and degree of curvature strong adaptability and clean efficiently.