A method for calculating the importance of nodes in electronic information wireless communication network based on efficiency matrix is proposed. The local information and global information of the node in the electronic information wireless communication network were obtained through the transmission efficiency matrix, the triangular fuzzy number method was used to construct the importance evaluation matrix according to the obtained information, and the importance evaluation matrix was used to calculate the importance of the node in the electronic information wireless communication network. The experimental results show that the importance measurement results of electronic information wireless communication network nodes by the proposed method are consistent with the actual test results, which improves the measurement accuracy and shortens the running time.