Abstract: With the increasing proportion of new energy generation and lagging construction of local power grids, many regions have curtailment of wind and solar energy in different degrees, and the situation of new energy consumption is grim.Combined with the existing characteristics of regional power system and development of new energy, this paper introduced the situation of new energy power consumption, dissected the main restrictive factors from new energy output characteristics, system peak shaving resources and power transmission, and deeply analyzed the impact of new energy on power grid strength, structure protection and low-frequency load shedding, finally some relevant suggestions to improve power grid security and new energy consumption capacity are given.