In view of the problem that the complex electromagnetic environment constructed for mil-itary training and the actual combat electromagnetic environment have inconsistent effects on the trained forces,a complex electromagnetic environment construction method is proposed based on the consistent battlefield electromagnetic effect targets.The electromagnetic effect targets are de-composed into"six domains",including time domain,frequency domain,spatial domain,energy domain,modulation domain,and polarization domain.The electromagnetic effects of the construc-ted environment and the actual combat environment on the trained forces are consistent through multi-domain difference compensation analysis and"scale mapping"construction and application.Finally,the construction fidelity calculation method is given,and the results are simulated and ver-ified through case analysis.