Abstract: The JORC code is standed for the Australasian Code for Reporting of Exploration Results,Mineral Resources and Ore Reserves,which sets out minimum standards,recommendations and guidelines for public reporting in Australasia of exploration results,mineral resources and ore reserves.The JORC code has been adopted by and included in the listing rules of the Australian ("ASX") and New Zealand ("NZX") Stock Exchanges.Nowadays,the basic concepts of the JORC code have been integrated in the similar codes,guidelines and standards published and adopted by the relevant professional bodies in Australia,Canada,South Africa,USA,UK,Ireland and many countries in Europe.With the pace of "walking out" for China's mining investment accelerating gradually,learning and mastering the the JORC code is getting particularly necessary.This article describes the JORC code's definitions,history,scope of application,and its eight key concepts,in order to inspire those who engage in overseas investment in mineral resources development.