The objective of this study aim to study the Mortuary Practice from archaeological, human skeletal 
and the past social organization at Pra Thu Pha rockshelter site, approximately dating to 2,500 years 
ago, in Mae Mo distict, Lampang province. Anthropological framework derived from cross-cultural 
studies and the Physical Anthropological methods are applied to Archaeological interpretation.

A total of 3,780 pieces of human bone from excavated units are analyzed. Based on minimum 
number of individual, is estimated that cultural level 2. According to archaeological association, both 
levels were place into the Neolithic Periods.

Prehistoric skeletal from the Pra Thu Pha site illustrate the results of analyses as follows:

First, the interments of males and females, including all age at the site.

Second, there are two distince types of mortuary practices found at the Pra Thu Pha site including 
primary and secondary burial practices. As for the primary burial compose of 1) extended burial and 
2) wrapped and smoked burials. The secondary burial composes of pieces of human bones 
covering  with clothes and placing on wood before buried.

Finally, the mortuary practices and grave goods suggested that society was a tribal organization due 
to the lack of elaborated burial practices.