The tunnel invert form board trolley, it belongs to the technology field of tunnel construction equipment. It includes the resist float platform, front walk wheel, back walk wheel, lift front, back supporting seat, cancelled structure trolley frame which contains column, the foundation frame of trolley and the invert form board set below the foundation frame of trolley, the said front, back supporting seat. And the front, back walk wheel are set in the end of the foundation frame of trolley, the resist float platform is set in the top of the invert form board, the said walk wheel are lift walk wheel, the said foundation frame of trolley is set above the invert form board by a float device. The merit is that the structure is simple, the cost of manufacture is low; the construction of the invert arch as well as upkeep and other work such as tunneling, slag, transportation can be in synchronously progress, and placing quality is not effected by the shocking of the vehicle. It is specially applied to the placing construction of long and big railway tunnel invert.