Sinocyclocheilus yimenensis (common name: Yimen golden-line barbel) is a species of cave fish in the family Cyprinidae. It is endemic to Yunnan province in southern China. Its specific name yimenensis refers to the Yimen County where its type locality is.
It grows to standard length and has a scaled, elongated body. The colouration is golden with a darker back and with some dark speckles.
The type locality is an exit of a subterranean stream.