The invention aims to provide an intelligent pipeline dredging method used for solving the technical problem of barrier cleaning in a pipeline. The intelligent pipeline dredging method comprises the following steps that S1, a radial expansion frame on a main machine shell is opened by starting a radial expansion motor, so that walking driving wheels at the outer end of the radial expansion frame reach an inner cavity surface of a to-be-cleaned pipeline; S2, a variable frequency pump is started, and barriers in the pipeline are flushed through a sprayer on a flushing ring; and S3, a walking driving motor is started, and the main machine shell is driven to move forwards along the inner cavity surface of the to-be-cleaned pipeline.