We develop a band-limitation equipment to improve coding efficiency for advanced digital terrestrial 8K UHDTV broadcasting system. The band-limitation is processed in prior to 8K codec to improve image quality of encoded 8K video with high compression. This equipment has high-speed interfaces considering connectivity to 8K recorder and 8K codec such as MPO (SNAP12) and U-SDI (ARIB STD-B58). In addition, filter parameters of the band-limitation are set by control PC. Coding efficiency of critical 8K UHDTV sequence is improved by using the equipment.