PURPOSE: To make a container blender for the mixing work light and compact, and improve the efficiency in fitting and removing a container by rotating the container in the air.

CONSTITUTION: A lifting frame 3 for lifting and lowering freely through a lifting driving mechanism such as a lifting actuator 6 or the like is supported on the rear section of a U-shaped base frame 1 and a rotating mechanism such as a rotating motor 12 or the like is installed on the lifting frame 3, and a lift fork 24 with a pair of arms, left and right, parallel with each other and extending forwardly is cantilevered rotatably. Lock mechanisms 33 engaging with a lock engaging section of the container inserted from the front section into between arms and fixing the container on the arms are formed on respective arms. The container can be inserted between the arms and fitted on the arms without being lifted up.