The invention relates to a rotatable crane chassis. The rotatable crane chassis comprises a central rotation mechanism, a plurality of cross beams, a plurality of steering mechanisms connected to thebottom surfaces of the cross beams, suspension mechanisms connected to lower parts of all the steering mechanisms, tires connected onto the suspension mechanisms and a control system for controlling all the mechanisms to work, wherein one end of each cross beam is hinged to the central rotation mechanism, and the steering mechanism and the suspension mechanism on each cross beam work independently. A crane comprises an upper crane part connected to the central rotation mechanism and the rotatable crane chassis. The crane chassis moves more flexibly, can better adapt to outdoor uneven roads, causes no damage to hardened roads, has better stability during working and is more convenient to dismount, higher in efficiency and lower in cost.