To provide a container transfer device capable of conveying non-defective containers by a suction cup without causing defective suction, and capable of positively detaching defective containers from the suction cup.

By rotating a rotation side member 23 to communicating an arced groove 3 of a fixed side member 22 with a first communication hole 40 of the rotation side member 23, a vacuum source 45 is communicated with the suction cup 9, and a container is sucked by the suction cup 9. By forming a communication hole 31 for compressed air connected to a compressed air source 46 in the fixed side member 22, forming a second communication hole 46 in a circumference side or an outer circumference side of the first communication hole 40 of the rotation side member 23, connecting the second communication hole 41 of the rotation side member 23 to the suction cup 9, and rotating the rotation side member 23 to communicate the communication hole 31 for compressed air of the fixed side member 22 with the second hole 41 of the rotation side member 23, the compressed air source is communicated with the suction cup 9, and a container is detached from the suction cup 9.