Method, device and system for protecting electronic evidence

The invention discloses a method, device and system for protecting electronic evidence. The method for protecting the electronic evidence comprises the following steps: acquiring the environment parameter of an evidence computer, evidence documents in the evidence computer and standard time; packaging the environment parameter, the data documents and the standard time so as to form digital evidence; and storing the digital evidence in random positions in an evidence storage device. According to the method for protecting the electronic evidence, primary evidence documents are not encrypted or recoded, and only the order of the evidence documents in the storage space in the evidence storage device is disturbed, so that the secret leakage preventing protection is conducted on the evidence documents, and the primitiveness of the evidence documents can be better ensured.