Seepage volume fracturing method for improving yield of shale gas horizontal well

The invention provides a seepage volume fracturing method for improving the yield of a shale gas horizontal well, which comprises the following steps of: determining target productivity required to be achieved by fracturing transformation according to geological data of a target well, and determining fracturing transformation volume and reservoir comprehensive permeability according to the target productivity; according to the fracturing transformation volume, the artificial fracture length and fracture conductivity required by fracturing transformation are determined; according to the reservoir comprehensive permeability and the length of a single artificial fracture, the number of fracturing transformation sections and the section length, the cluster spacing and the cluster number of each section are determined; determining the type and the putting amount of a temporary plugging agent by taking uniform crack expansion during fracturing as a target; the type of the proppant is determined with the aim that th