The invention discloses a virtual terminator model modeling and automatic ligature method based on machine learning. The virtual terminator model modeling and automatic ligature method based on machine learning comprises the following steps: acquiring at least SCD configuration files which have been finished at first; then analyzing the various acquired SCD configuration files to obtain IED information and virtual terminator ligature information in various SCD files; and establishing a knowledge set which comprises a typical IED model base, a virtual terminator typical ligature matrix and a virtual terminator typical ligature confidence matrix on the basis of an analysis result of the SCD files, then configuring the new SCD files, and carrying out automatic ligature on a virtual terminator on the basis of a current knowledge set. By the virtual terminator model modeling and automatic ligature method based on machine learning, the achievement of the configuration operation which has been finished can be utilized effectively, the modeling workload during actual operation is reduced, meanwhile, and compared with a typical IED judgment method, the virtual terminator model modeling and automatic ligature method based on machine learning can avoid interference caused by the reason that various IED factories have difference on standard understanding.