The Gunma University Faculty of Engineering Alumni Memorial Hall, located on the Kiryu Campus, was initially used as the main building of Kiryu Higher Dyeing School, the predecessor of the Gunma University Faculty of Science and Technology (established in 1915). It was completed in 1916.
The school specialized in two fields: dyeing and textiles. Over the years, it went through various stages, including Kiryu Higher Industrial School and Kiryu Technical School, before becoming the Faculty of Engineering of Gunma University in 1949. In 2013, the Faculty of Engineering was reorganized into the Faculty of Science and Technology.
The current building consists of a part of the original main building and an attached auditorium, which were relocated in the 1972 academic year. Despite enduring a century of wind and snow, the building has undergone several repairs, including a significant seismic retrofit in 2017.
The wooden structure has a total floor area of 987 square meters. The main building primarily utilizes Japanese cedar as the building material, and elements of the Tudor architectural style can be seen in the decorative eaves and the shape of the entrance arch, influenced by British architecture. Upon entering the entrance, a double-height hall leads directly to the auditorium. This layout follows the "direct-administration school style" commonly found in school buildings of the late Meiji period. The former auditorium is single-story but spacious, with a two- to three-story high ceiling. The podium against a decorative wall and neatly arranged benches evoke a sense of an old-fashioned church.
There are rooms dedicated to housing and exhibiting historical materials and a dye collection. The latter consists of approximately 4,361 actual dye samples collected from Europe and other regions between the establishment of Kiryu Higher Dyeing School and around 1945. Many of these dyes are no longer obtainable, making the collection nationally and globally invaluable. This building, the Faculty of Engineering Guardhouse, and the former main gate of Kiryu Higher Dyeing School were registered as a National Registered Tangible Cultural Property in 1998.