The present disclosure provides a data processing method, a data processing apparatus, a data processing system and a non-volatile storage medium. The method comprises: an acquisition step of acquiring data from at least one data provider and acquiring an algorithm from an algorithm provider via an access gateway; a calculation step of calculating the data according to the algorithm, so as to obtain a calculation result; and a review step of reviewing the calculation result by the at least one data provider via the access gateway, so as to determine whether the calculation result is allowed to be output to at least one result data owner.