A container transport facility, comprising: a transport vehicle configured to transport at least one container that is configured to be step-stacked in an up-down direction; a storage shelf configured to store the container; and a work area in which target work, which is at least one of taking-out work of an article from the container and inputting work of the article into the container, is performed, wherein the at least one container includes a plurality of containers, the storage shelf is configured to include a plurality of steps of a shelf portion that supports each container in the up-down direction, and store the plurality of containers in a state of being separated from each other, the transport vehicle includes a traveling body configured to travel, a support portion configured to be mounted on the traveling body and support the plurality of containers as a step-stacking container group which is a container group in a step-stacked state, a first transfer device configured to be mounted on the traveling body and transfer the containers between the storage shelf and the step-stacking container group supported by the support portion, and a second transfer device configured to be mounted on the traveling body and transfer the step-stacking container group, the work area is provided with a delivery portion through which the step-stacking container group is delivered between the delivery portion and the support portion, characterised in that said container transport facility further comprises: a holding area being provided at a location different from the work area and the storage shelf, the holding area including a holding portion configured to hold the step-stacking container group, and the holding portion being configured to transfer the step-stacking container group between the holding portion and the support portion by the second transfer device. a transport vehicle configured to transport at least one container that is configured to be step-stacked in an up-down direction; a storage shelf configured to store the container; and a work area in which target work, which is at least one of taking-out work of an article from the container and inputting work of the article into the container, is performed, wherein the at least one container includes a plurality of containers, the storage shelf is configured to include a plurality of steps of a shelf portion that supports each container in the up-down direction, and store the plurality of containers in a state of being separated from each other, the transport vehicle includes a traveling body configured to travel, a support portion configured to be mounted on the traveling body and support the plurality of containers as a step-stacking container group which is a container group in a step-stacked state, a first transfer device configured to be mounted on the traveling body and transfer the containers between the storage shelf and the step-stacking container group supported by the support portion, and a second transfer device configured to be mounted on the traveling body and transfer the step-stacking container group, the work area is provided with a delivery portion through which the step-stacking container group is delivered between the delivery portion and the support portion, characterised in that said container transport facility further comprises: a holding area being provided at a location different from the work area and the storage shelf, the holding area including a holding portion configured to hold the step-stacking container group, and the holding portion being configured to transfer the step-stacking container group between the holding portion and the support portion by the second transfer device. a holding area being provided at a location different from the work area and the storage shelf, the holding area including a holding portion configured to hold the step-stacking container group, and the holding portion being configured to transfer the step-stacking container group between the holding portion and the support portion by the second transfer device.