We obtained 87 living Malayan pangolins (Manis javanica) that the Forestry Public Security Bureau of Guangdong confiscated from illegal trader in June, 2011. According to the wear degree of their claws, scales and hair, the behavior relationships between mother and baby, and body weight, they were divided into 4 age groups: cub, sub-adult, adult and senior, and were composted of 3(3.45%), 22(25.29%), 32(36.78%) and 30(34.48%) individuals respectively. The age structure diagram shaped inverse pyramid, it implied Malayan pangolin population was in rapid decline. Sex ratio was 1:1.42(♂:♀)(36:51). The proportion of females was less than that of males, and the female proportion was the lowest in adult group (28.13%). The giving birth records showed one cub at a birth. The pregnancy rate for all females was 36.1%, the greatest fecundity occurred in the adult group (77.78%). The smallest pregnant mother (sub-adult) was 1.95kg in weight. Morphological feature for new born cubs were measured: body weight 143.3±6.67g (120~170g, n=6); body length 14.7±0.29cm(14.8~15.4cm, n=6); tail length 10.1±0.24cm (9.5~11.2cm, n=6). Our research results show in Southeast Asia area Malayan pangolin population has been largely destroyed with severe unhealthy status, if we don’t take effective protective measures, the population will continue to keep a rapid decline trend, even the ecocide is possible as well in near future.