The invention discloses a cleaning device for adhesions on the inner wall of a pipeline. The cleaning device comprises a small-sized servo motor, a shift ring, at least two long handles and short handles, wherein an extending shaft of the small-sized servo motor is provided with threads; the shift ring is provided with balls; the balls slide in a threaded groove of the extending shaft of the small-sized servo motor; one end of each long handle is connected onto the shift ring, and the other end of each long handle extends; a scraper is arranged at the extending end; a polyester fabric covers the outer sides of the long handles; the number of the short handles is identical with that of the long handles; the short handles are used for supporting the corresponding long handles; and an illuminating lamp, a camera, a control device and a push-pull tube are arranged on the small-sized servo motor. According to the cleaning device disclosed by the invention, the device is mounted into the pipeline by the push-pull tube; the adhesions are found by pushing and pulling the push-pull tube; the small-sized servo motor is started, the long handles drive the polyester fabric to be opened, and the adhesions on the inner wall of the pipeline are scratched by outer ends of the long handles; and the scratched adhesions are collected in the hopper-like polyester fabric, and the push-pull tube is drawn to withdraw from the pipeline. According to the cleaning device disclosed by the invention, the adhesions on the inner wall of the pipeline are removed by adopting a physical method, so greenness and environmental protection are realized; and working efficiency and economic benefits of pipeline maintenance departments or enterprises are improved.