A new genus, Abelbolla gen. nov. and three new species of free-living marine nematodes in this genus, Abelbolla boucheri sp. nov., Abelbolla huanghaiensis sp. nov. and Abelbolla warwicki sp. nov. from the Yellow Sea, China are described and illustrated. Abelbolla gen. nov. is characterized by rapered anterior end of the body, buccal cavity divided in two parts, precloacal supplements more or less visible and absence of differentiated oesophageal bulbs. A boucheri can be separated form other species of Abelbolla by thin spicules with an enlogated capitulun and rather short and massive gubernacular apophysis. A. huanghaiensis can be separated from A. boucheri by the presence of spicules with a small hook at distal end, and by gubernaculums with longer dorsal apophysis. A. warwicki is characterized by a large buccal cavity and no winged precloacal supplements. The types are deposited in the College of Marine Life Sciences, Ocean University of China.