The invention provides a sliding type walking device for a hanging basket. The sliding type walking device comprises one or more sets of sliding walking single members, wherein each sliding walking single member comprises a rail assembly, a blocking block assembly, a jack, a pushing box assembly and a sliding ship assembly; each blocking block assembly, each jack, each pushing box assembly and each sliding ship assembly are sequentially arranged on the rail assembly; each blocking block assembly comprises a blocking block and a first pin shaft; each pushing box assembly comprises a pushing box and a second pin shaft; two ends of each jack are separately close to the corresponding blocking block and the corresponding pushing box; each sliding ship assembly comprises a sliding ship and a rolling component arranged on the corresponding sliding ship; and each rolling component comprises at least two sets of roller sets. Through the adoption of the technical scheme of the sliding type walking device disclosed by the invention, the sliding type walking device has the effects that the sliding type walking device is simple in structure, firm and reliable, and light in weight; the sliding type walking device is convenient to disassemble and easy to assemble; the sliding type walking device is smooth and quick in walking, and the speed achieves 6m/2.5h; and the sliding type walking device is low in labor intensity and high in construction efficiency. The invention also discloses a method for walking by adopting the sliding type walking device for the hanging basket. The method disclosed by the invention is simplified in technology, convenient to operate, and high in practicality.