Mankind steped three stages during the process of the conservation of geoheritages : (1) various countries set up their own national parks individually and unsystematically in order to protect their geoheritages; (2) various projects were iniated or promoted by international organizations to protect the geoheritages world wide; (3) the division of the Earth's Science, Unesco sponsors "Geopark Program" and establishes "World Geopark Network", resulting in the entering a healthy development stage of geoheritage comservation. 44 national geoparks of China were approved, so as to promote geoheritage protection, restore the regional geo-ecoenvironment, enforce the popularization of geoscience, support the development of local economy, increase the jobs for local residences, and promote the regional sustainable development. It is predicted that the construction of "World Geopark Network" will definitely raise the curtain on the geoheritage conservation.