Abstract: In the initial stage of the spot market, flat price limit standards are commonly used to prevent extreme price risks. However, as the construction of new power systems accelerates and new energy enters the market on a large scale, the impact of intermittent output on spot prices is expanding, and the risk of new energy entering the market increases. The price limit design needs to further consider issues such as conventional unit revenue, new energy installation ratio, and load demand. Therefore, considering the factors that have a strong linkage with spot prices, the main factors are selected to form the price limit influence layer. On the basis of improving the traditional price control model, the influence factors and the adaptive coefficients of the series of models are introduced to propose a spot market price limit adaptive model that takes into account the multi factor influence layer under the risk of new energy entering the market. The simulation results show that, The model can achieve dynamic tracking of spot prices in different demand scenarios to ensure system security and stability.