The invention discloses 'a method for establishing a peer-to-peer network storage data trust model', relates to the technical field of distributed storage security, and has a wide application prospect in the field of peer-to-peer network storage. The method is characterized in that: aiming at the characteristic of the current trust model which is vulnerable to a 'wash bottom' attack because a fixed trust value is endowed to the node of a newly added network, a method for dynamically configuring node initial values is provided; and simultaneously, a storage trust value concept and a data read trust value concept are provided for improving the flexibility of a trust model in the field of network storage, and the proportion of the two trust values in a final result is regulated by storing a preference factor. Compared with other peer-to-peer network storage data trust models, the peer-to-peer network storage data trust model is more flexibly configured and has a wider application range. A simulation experiment shows that the model has a higher transaction success rate than the classical EigenTrust trust model under large-scale 'wash bottom' attacks.