To provide an ID tag holder which is hardly separated from a pallet even if strong impact is applied from the outside and can be attached to the pallet easily and can be attached at existing pallet products directly and to provide an ID tag holder and a pallet with the ID tag holder.

The ID tag holder is composed of a head having almost the same depth width as the distance between adjacent crosspieces and a body connected to the head and an resilient piece protruded in the depth direction and a protrusion protruded from the bottom face of the body are formed in the body and when it is inserted, the resilient piece is engaged in the lower end of a hanging down rib of at least one crosspiece of adjacent crosspieces and the protrusion is fit in a through-hole formed on the other face side of the pallet.