It is found in Bangladesh, Bhutan, Cambodia, China, India, Indonesia, Laos, Malaysia, Myanmar, Nepal, Sri Lanka, Thailand, and Vietnam.
The Asian emerald cuckoo was formally described in 1788 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae.
[3] The Asian emerald cuckoo is now placed together with 12 other species in the genus Chrysococcyx that was introduced in 1826 by the German zoologist Friedrich Boie.
[7] The Asian emerald cuckoo mainly forages in the upper levels of the canopy where it feeds on insects and other small invertebrates, including ants, caterpillars and bugs.
It is a brood parasite, the females laying their eggs in the nests of other birds, such as the crimson sunbird (Aethopyga siparaja) and the little spiderhunter (Arachnothera longirostra).