The invention provides a full-face tunnel boring machine. The full-face tunnel boring machine comprises a tunnel boring machine main body, wherein a cutter disc is arranged at the head of the tunnel boring machine main body and is detachably connected with the tunnel boring machine main body, and the tunnel boring machine main body is formed through detachably connecting a plurality of main body modules. According to the full-face tunnel boring machine, the difficulty of transportation can be lowered; the full-face tunnel boring machine can be applied to laneways adopting vertical shaft structures.