Abstract: In order to protect and develop the dominant varieties of Leizhou goat and enrich the content of livestock anatomy, the morphological characteristics of the cardiac papillary muscles and ehordae tendineaes of 15 heads of Leizhou goats were observed with the gross anatomy method. The results showed that there were 3 groups of the papillary muscles in the right ventricule in 8 cases, which was the septal anterior, seplal posterior and the cranial wall papillary muscles, resp. It was only l case that the septal anterior muscle formed the typical papillary mosclc and the septal anterior papillary muscles were absent in 7 cases. There were the big and small types of the papillary muscle in the septal posterior muscle group and the former was the main type. The big papillary muscle was classified into 3 types of the attached, free and intermediate types. There were small papillary muscles near the big papillary, muscles in 5 cases, the cardiac papillary muscles of 3 cases were composed with 3-5 small papillary muscles, and that of 7 cases were composed with 1-2 big papillary muscles. The groups of the cranial wall papillary muscle were composed with 1 or 2 big papillary muscles and the papillary muscles were all free type. There were 2 papillary muscles in the left ventrieule, which was the anterior and the posterior papillary muscle, resp. and both of them were well developed and belonged to attached types. In addition, the morphology of the papillary muscle, type and the connectal manner of the chordae tendineae ect. were also described in the paper. It was concluded that Leizhou goats lived in tropical and subtropical climatic conditions for a long time, and its cardiac papillary muscle and chordae tendineae had some region features.