Two new diterpeniods, euphebracteolatins A and B ( 1 and 2, resp.) were isolated from Euphorbia ebracteolata Hayata, along with two known ones (3 R)- ent-rosa-1(10),15-dien-3 α-ol ( 3) and yuexiandajisu D ( 4). The structures were established by extensive spectroscopic analyses and comparison with literature data.