To provide a tread centering apparatus in which the center position of a tread can be maintained sufficiently by applying centering accurately at a downstream side conveyer, even in a case that a tread of wide width is carried on an upstream side conveyer with meandering.

In manufacturing tires, the tread centering apparatus for centering the center position of a tread conveyed on a roller conveyer to a predetermined position in tire manufacturing includes a free roll with a built-in trans-wheel immediately after a loop part of a dancer formed when a tread cut into a specified length changes from an upstream side carrying conveyer to a downstream side carrying conveyer, and a guide roll for centering the tread near the downstream side of the free roll.