Provided is a container processing system capable of improving a speed of processing containers with a simple configuration and providing a compact production line. The container processing system (10) includes a container conveyer (20) having a container conveying path (21a) that conveys containers (C) arranged in a row and a container processor (40) that performs processing on the containers (C) in a container processing area (A2) set lateral to a container transfer area (A1) set in a segment of the container conveying path (21a). The container conveyer (40) includes a container carrier (21) conveying the containers (C) arranged in the row along the container conveying path (21a) and a container transferer (22) moving a container row including the plurality of containers (C) arranged in the row in the container transfer area (A1) toward the container processing area (A2).