The invention discloses a logging evaluation method suitable for a shale gas reservoir geological model, comprising following steps: building a prediction geological model and reservoir fracture pattern of a shale gas target interval area; determining a logging curve and basis for the logging curve to identify a fracture; confirming geological characteristic information of a horizontal well segment; restoring a geological model according to a variation relation between the geological characteristic information of the horizontal well segment and the horizontal well logging curve in connection with the prediction geological model; inspecting the reservoir fracture pattern and the restored geological model according to other drilling core tests near the horizontal well as well as shale gas production and testing results of a shale gas target interval. The method uses the logging information to restore the reservoir geological model, drilling risk is avoided, the accuracy for horizontal well trajectory design and target layer drilling catching is improved with cost saving; the method is applicable to shale horizontal well development and the development of other types of horizontal wells and is highly operable.