Based on the radarbased lightning warning products of Zhejiang meteorological Observatory running for many years (60 min early warning, spatial resolution 1 km×1 km, four warning levels), considering the high false negative rate of Lightning Warning Products, a method of lightning warning is presented by blending lightning location data and atmospheric electric field data. The results from the new lightning warning method in 2018 are verified, with a POD (Percent of Doom) of 31.52%, FAR (False Alarm Rate) of 29.86%，and CSI (Critical Success Index) of 61.24%, which are better than those from the previous method based on singlefactor observation. It can be obviously seen that this method has more significant indication and reference for Zhejiang lightning forecasting and warning.