Based on the general nutrition components of national standard GB / T 5009.6 – 2003,the proportion of protein,crude fat,moisture,ash content of wild papaya were tested in the seeds of Stauntonia chinensis DC.The wild papaya seed crude fat was separated with reflow heating method with petroleum ether extract.After measuring its physical-chemical properties,the fatty acid of wild papaya seed was analyzed by the GC/MS.The results shows that the protein is 21.53%,crude fat 25.05%.It is an excellent source of plant protein and fats.The wild papaya crude fat may need to refine because of high acid value.The crude fat is mainly composed of saturated fatty acids(palmitic acid 12.41%,stearic acid 5.5%,arachidic acid 4.29%) 22.20% and unsaturated fatty acids(oleic acid 42.13%,linleic acid 30.40%,palmitoleic acid 0.3%) 72.83%.