Method for synchronously reproducing multimedia multi-information and application thereof

A method for synchronously reproducing multimedia multi-information is to combine a plurality of relevant documents and a plurality of information flows, which have associated information relation via a multi-information modulation unit, and to synchronously reproduce with a player which can be used for synchronously reproducing multi-information. The step of synchronously recording multi-information of the method is to insert non-audio and video information in audio flow, video flow or file before condensing or after condensing with the multi-information modulation unit, that is to say to embed needed video frame or audio frame in an additional information block carried with the non-audio and video information and/or creating or inserting an additional information frame carried with the non-audio and video information among the needed video frame and the needed audio frame. The method can be used for simultaneously storing a multimedia multi-information file in same file in real time and ensure highly synchronization when inquiring and playing back.