The invention relates to a low-hole extra-low-permeability unconventional reservoir dissolution hole identification method, and belongs to the field of petroleum exploration and development; and according to the core physical property analysis data of the target area unconventional reservoir cored interval, the corresponding relation of the unconventional reservoir dissolution hole development section to the porosity and the permeability is built, the well log response characteristics of the target area unconventional reservoir cored interval dissolution hole development section are determined, the porosity explanation model of the target area unconventional reservoir dissolution hole is built, and the target area unconventional reservoir dissolution hole is identified and evaluated. The unconventional reservoir dissolution hole identification method, built based on the core data and the log data, preferably evaluates the sandstone reservoir dissolution hole, is better in identifying and evaluating effect on dissolution holes of a carbonate reservoir, an igneous rock reservoir and a shale reservoir, and is low in cost, easy to be promoted and wide in application prospect.