In response of the frequent failure problems of electromagnetic unlocking for aerospace separation electrical connectors，a reliability analysis method for the electromagnetic unlocking of separation electrical connectors is proposed based on digital models.A specific type of separation and release connector is selected as the research object.First，the functions，structure，and failure mechanisms of the connector are analyzed，by which the key failure modes are identified.Then，the digital models are used to simulate the unlocking process.A high-precision 3D model is established and combined with the finite element simulation analysis，by which the stresses exerted on the key components during the electromagnetic unlocking are analyzed.Finally，verification experiments are designed to validate the stress simulation results.Based on these results，the service life of the key components is predicted with the life prediction software.