The invention discloses a voice technology-based intelligent virtual training method for complex equipment and system, which belong to the field of virtual training. Firstly, a virtual simulation operation environment is built for the complex equipment; secondly, in combination of personnel post configuration in the training process, parallel acquisition and processing for multi-channel voice arecarried out; thirdly, in view of determined equipment operation rules, effective voice features of training staff are extracted, automatic voice recognition is realized, and matching analysis with a password text pattern in the rules is completed; fourthly, automatic voice synthesis for equipment operation information is carried out, and through task coordination between the equipment and components, synchronization of actions, voice, phenomena, prompt and other elements of virtual training is realized; and finally, according to the requirements of equipment training and use, a learning resource base, an operation rule base, an assessment result base, a virtual equipment base and a maintenance fault base for principle teaching, rule back-to-front, virtual training, task assessment and fault diagnosis are built.