[1] [2] The kami enshrined at Ōasahiko Jinja are: It is believed that in the era of Emperor Jimmu, Ame-no-Tomi-no-Mikoto came to the Awa region (an ancient region that encompassed most of present-day Tokushima Prefecture) seeking fertilized land to sow hemp seeds.

Because of the impact he had on furthering the welfare of Japan, Ōasahiko Shrine was dedicated in the area to worship him as a kami named Ōasahiko-no-Ōkami.

The shrine is listed in the Nihon Sandai Jitsuroku national history which was compiled in 901, in entries dated 867, 878, and 883, noting promotions in its official ranking.

Under the premodern system of shinbutsu-shūgō syncretism between Buddhism and Shinto, it was closely associated with Ryōzen-ji, the first temple in the Shikoku pilgrimage and jingū-ji to the shrine.

[5] Marking the start of an 800-meter-long (2,625 ft) road leading directly to the shrine's haiden is a large, orange torii.

[7] Behind the main portion of the shrine grounds to the northeast is the German Bridge (ドイツ橋, Doitsu bashi).