The utility model provides a flat material machine of arm -type spiral of unilateral book, is including preventing inclined to one side device, the flat material pushing equipment of spiral, cantilever crane system, cab device, rotation mechanism, running gear, spiral adjusting oil cylinder, big arm hydro -cylinder, cab lift cylinder. The sensor linking bridge rigid coupling of preventing installing partially is in the helical mount both sides, the flat material pushing equipment's of spiral forearm connecting seat is connected with the forearm head hinge point of cantilever crane system, the big arm afterbody hinge point of cantilever crane system is connected with rotation mechanism's big arm supporting seat, the cab support afterbody hinge point of cab device is connected with rotation mechanism's cab support supporting seat, the terminal surface is connected with running gear's slewing bearing up end under the rotating platform. Running gear walks on ground, and functioning speed is fast, and the flat material pushing equipment of spiral pushes away the material can the reinforce, can follow the rail length orientation and carry out the operation of the flat material of scanning formula to the permutation carriage, can adapt to multiple complicated topography, need not any auxiliary assembly. Have characteristics such as flat material is effectual, strong adaptability, safe and reliable.