Syllepte ningpoalis is a moth in the Crambidae family. It was described by Leech in 1889. It is found in China. The wingspan is about 32 mm. The forewings are fuscous-brown with a pale yellow quadrate spot about the middle of the wing towards the costa, followed by a large irregular-shaped blotch of the same colour, beyond which are two colon-like dots. The central portion of the costa is orange. The hindwings are fuscous-brown, rather paler along the inner margin.