A Buff-throated Warbler, in Thai known as nok krajid thong sih nahm tahn, has pale yellow underparts with a clearly lighter throat, vent and undertail-coverts.

Its upperparts are olive to greenish brown and it has a pale supercilium that runs from the nostrils to behind the eyes.

The bill is dark, slender and pointed. The legs are also dark. Its preferred habitat includes forest and open space.