In terms of the cultural development, Masamune actively introduced the Kyoto and its vicinity cultures by inviting technical experts, artisans and carpenters, and created a style based on the solemn and splendid Momoyama style with the mixture of those qualities found in northern regions; Masamune left various buildings such as Osaki Hachiman-gu Shrine and Zuigan-ji Temple that are designated as the national treasures today, and Shiogama-jinja Shrine and Mutsu Kokubun-ji Temple.
文化的には上方の文化を積極的に導入し、技師・大工らの招聘を行い、桃山文化に特徴的な荘厳華麗さに北国の特性が加わった様式を生み出し、国宝の大崎八幡宮、瑞巌寺、また塩竈神社、陸奥国分寺などの建造物を残した。