This survey of the bryophytes was conducted on the limestone Hon Chong area of Kien Luong district, Kien Giang province, between March 2011 and February 2012. Twenty nine species of 21 genera and 14 families were recorded at eight karst hills. Chua Hang accommodates the highest diversity of 22 species. Neckeropsis exserta var. scrobiculata (Nees) Touw E. B. Bartram is a new record and four doubtful species of the genera Archilejeunea, Cololejeunea. Schiffneriolejeunea and Pallavicinia, still being under examination and could be new records for Vietnam.