With the high proportion of new energy access and the growth of power demand during peak hours, the balance of power supply and demand is increasingly hard to maintain. It is urgent to explore the potential of demand-side resource, establish complete power market mechanism and transform the“source follows load”to“source-load interaction”under the new-type power system. Firstly, a multi-dimensional review of demand-side resources is introduced and the market types in which they participate are summarized. Then, the technical progress in assessment and regulation of demand-side resource are analyzed in 3 aspects：demand-side resource quantitative assessment of adjustable potential, demand-side resource aggregation and regulation and demand-side management system equipment. Finally,combined with the requirements of new-type power systems, some suggestions are put forward for demand-side resource utilization in the market environment.