Substation is the core node of power grid in energy conversion and operation control. At present, the digital and standardized smart substation has been widely constructed. The information table of data communication gateway is the foundation and key of interaction between substation and master station in dispatch center. When building a new substation, it is necessary to manually compare the correctness information between the station and the dispatching master station one by one. Usually, the remote information table of a new-built substation contains several thousands of points, which makes the working efficiency extremely low. To solve this problem, a novel method for automatic verification of the monitoring information is proposed in this paper. Based on SCD and RCD of smart substation, this method uses wireless technology to build a communication channel to realize the automatic checking of monitoring information in newly built substations, which provides a novel effective means for verifying the information of new-built substation.