Disclosed is a ceramics kiln heat recovery semiconductor thermo-electric generation method of the invention and a device, wherein the ceramics device for emitting the residual heat is arranged below the device, and the radiation heat is adsorbed by a collecting plate, which is transferred to the hot face of the semiconductor thermo-electric generation module; the thermal fin with ribs are arranged above the cold face of the semiconductor thermo-electric generation module, then the hot of the cold face is emitted out, thereby generating the temperature difference at the two end faces of the semiconductor thermo-electric generation module. Due to the Bessel effect in the semiconductor, the electric potential difference is generated, outputted through the voltage stabilization and inverting circuit, namely as the power supply. The structure of the device comprises a semiconductor thermo-electric generation module, a collecting plate, thermal fin with ribs, which has the advantages of directly converting the recovery waste beat into the electric energy, to cause the electric power generation process free of noise, abrasion and dielectric leakage, and having small volume, light weight, convenient movement, no maintenance and long service life and the like.