Data sharing realizing method of distribution type control system and device thereof

The invention discloses a data sharing realizing method of a distribution type control system and a device thereof. The method comprises the following steps that: a response control station receives a data sharing request initiated by a request control station, wherein the data sharing request comprises identification information of shared data; the response control station generates response feedback according to the identification information of the shared data, wherein the response feedback comprises sharing data packet and response information; and the response control station transmits the response feedback to the request control station to realize the data sharing between the request control station and the response control station. The data sharing realizing method can reduce the coupling of nodes of the distribution type control system and can realize effective unsymmetrical data sharing.