札幌大通地下ギャラリー「500m美術館」は、札幌市営地下鉄大通駅とバスセンター前駅を結ぶ地下コンコースを会場に11月限定でアート作品の展示を行う「さっぽろアートステージ」の美術部門（愛称「500m美術館」）をその前身としています。
Sapporo Odori Underground Gallery "500m Museum" has as its predecessor the art division (nickname "500m Museum") of "Sapporo Art Stage," which conducts exhibitions of art works limited to November, using the underground concourse connecting Sapporo Municipal Subway Odori Station and Bus Center-mae Station as its venue.

その後、市民や芸術文化関係者から常設化してほしいという声を受け、地下通路の有効活用という観点に加え、札幌のアーティストを中心に国内外の芸術文化を発信する場の1つとして、平成23年11月3日（文化の日）に駅施設内の通路に設置するギャラリーとしては日本で最長の施設として常設化しました。
Subsequently, receiving voices from citizens and arts and culture stakeholders that they want it to be made permanent, in addition to the viewpoint of effective utilization of the underground passage, and as one of the places to disseminate domestic and international arts and culture focusing on Sapporo's artists, on November 3, Heisei 23 (Culture Day), it was made permanent as the longest facility in Japan as a gallery to be installed in the passage within station facilities.

積雪寒冷地札幌において四季を通じて安全で快適に移動できる地下空間を地元アーティストの発表の場として活用し、札幌の文化芸術を内外に発信するとともに、国内外の作家の作品を展示し、市民が様々な芸術作品に触れる機会を創出することを目的に毎年、複数回の展覧会を実施しています。
In Sapporo, a snowy and cold region, utilizing the underground space where one can move safely and comfortably throughout the four seasons as a place for local artists' presentation, and at the same time disseminating Sapporo's culture and arts domestically and internationally, and exhibiting domestic and international writers' works, with the purpose of creating opportunities for citizens to come into contact with various art works, every year, they are conducting multiple exhibitions.