Abstract: Phase change storage technology is a mainstream technology of nano-electronic devices.Phase change random access memory（PCRAM）,with the reversible phase change abilities that can be operated by nanosecond width electrical pulses,has a tremendous commercial value and a promising application vista in the fields of flushbonding and bulk-storage memory.Promoted by international business giants,techniques and capacities of PCRAM chips develop at a transnormal speed.Meanwhile,the international research groups pay lot attentions to the hotspots including mechanisms of the reversible nano-phase change,effective control of the nano-phase change,and advanced cell structure of low power consumption.This article will review the above-mentioned contents and summarize current research situation,industrial foundation,cooperation,and prospect of PCRAM in China.