an epb shield machine without disc cutter , which includes a partition unit formed by a moveable partition member and a stationary partition member , a front shield unit including a cutting unit with cutting head and cutting teeth , a shaft member connected to the cutting head and a power transmission unit formed by a transfer case , a reducer and a driving motor . in the power transmission unit at an upper portion of the machine , the transfer case is fixedly to the moveable partition member , a sliding arrangement supports the reducer and the driving motor , which are connected to the transfer case is connected to the sliding arrangement . the machine has advantages of high cutting efficiency , balanced service life , high directional construability and high adaptability to tunnel cross section .