Due to climate change and greenhouse effect, governments around the world have to put great effort to promote energy policies. Reversible solid oxide cells (rSOCs) is combined with solid-oxide fuel cell (SOFC) and solid-oxide electrolysis cell (SOEC) which can dynamic and reversible operating between power generation and energy store. According to the needs of back-end users, the system can be flexibly switched in terms of power demand and economic products. Our team has put a lot effort in the development of key components for a long time, include: solid electrolytes with high conductivity, low impedance composite cathodes, anti-carbon deposition anodes material and preparation of large area fuel cells by single co-firing technology. In the future, through the market layout and international influence of the cooperative enterprises, the rSOCs system with forward-looking hydrogen production/power generation bifunction developed by this project will be promoted to the world.