The invention provides a production method of superfine fiber synthetic leather, comprising a superfine fiber bottom blank production step and a dry method surface modeling step. The dry method surface modeling step comprises a burdening step, a draw-off step, an applying step and a post-stage processing step, wherein aqueous polyurethane with the modulus being 30-50Kg/cm<2> is used as a raw material during the burdening step; the draw-off step adopts one knife half production step, which comprises a floating knife draw-off step and a two knife draw-off step; and the applying step adopts the gapped applying. The superfine fiber synthetic leather provided by the invention is produced by the adoption of the superfine fiber and gapped applying production method. The superfine fiber syntheticleather produced in the invention is soft in texture and comfortable to wear. In addition, the peeling strength, tearing strength and hydrolysis resistance of the superfine fiber synthetic leather provided by the invention are improved in comparison with those of common shoe lining synthetic leather.