This paper discusses the reconstruction of uvular and labio-uvular stops in Old Chinese, originally proposed by Pan Wuyun. The following two improvements are proposed : (1) the Old Chinese non labialized voiced uvular stop evolved to Middle Chinese y- rather than hj- in Pan's theory (which implies that Middle Chinese y- has two sources in Old Chinese : *1- and *g-) ; (2) uvulars and labio-uvulars evolve to MC velars when preceded by a minor syllable. This explains why velars and uvulars frequently alternate in phonetic series. The article also explores the evolution of (labio)uvulars in the context of different prefixes.Cet article porte sur la reconstruction d'occlusives uvulaires en chinois archaïque, proposée par Pan Wuyun. Plusieurs am...