The electrocatalytic hydrogen cycle with carbon and nitrogen resources is of emerging interest for renewable energy and environment. Currently, my research focuses on developing efficient and high-performing electrocatalysis system for carbon and nitrogen mediated hydrogen cycle via 1) designing reactive and selective electrocatalysts and electrolytes, 2) fabricating atomic- to large-scale electrode and system, and 3) developing on-line analytical techniques to identify reaction intermediates and products. In this talk, I'll introduce recent works of electrocatalytic conversion of CO2 and NO and future research direction.