The invention discloses a multi-source data distribution method based on a distribution subscription mechanism. The method comprises the following steps: firstly constructing a corresponding data distribution and subscription relation aiming at one subject, and further constructing a plurality of corresponding sub-relations and sub-subject data; establishing a subject data distribution tree using a data distribution party as a root node to construct a data distribution forest; selecting a sub-method through a father node in the data push process, and pushing a corresponding subject data message on the established distribution tree according to a topological structure of a node load adjusting distribution tree. The method disclosed by the invention is suitable for any network topological structure, and capable of improving the total bandwidth use ratio and shortening the duration of the multi-source data distribution task while balancing the node load.