To maintain wear resistance, and to prevent heat separation by effectively suppressing a temperature rise on a belt during tire loading, and the heat generation of a tread part, in particular, a center part, and radiating the heat.

A tire for a construction vehicle comprises: at least one carcass layer extending toroidally between a pair of bead cores; a plurality of belt layers on the outer side of the carcass layer in the radial direction of a crown; and a tread part on the outer side in the radial direction of the belt layers. A large number of lug grooves extending toward a tire equatorial plane from both ends of the tread part are arranged on the tread part. The depth of the lug grooves is 70-200 mm, and a groove bottom and a groove wall of each lug groove are covered by a rubber sheet (A) having the thermal diffusion coefficient α which is ≥ 1.3 times that of the tread rubber.

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