|Haiden and sacred tree "Tōmyō-sugi" behind it|
The shrine was founded in 587, but the present main building (shaden) of the shrine dates to 1705. The Botansugi (牡丹杉?) Japanese cedar behind the main building is considered sacred and said to be 1000 years old. It has been designated by the village as natural monument (村指定天然記念物). According to legend, the tree top is said to shine at times of emergency. Because of this, the tree is also called Eternal flame (or votive light) cedar (燈明杉 Tōmyō-sugi?).
The object of worship or shintai of the shrine is a sword, the National Treasure gilt bronze tachi with ring pommel (金銅荘環頭大刀拵 kondōsō kantō tachi goshirae?). Offered to Kunitokotachi by the Kusakabe clan at the time of foundation, this double-edged blade is said to be the oldest Japanese object transmitted from generation to generation. This straight sword dates to the late Kofun period, weighs 527 g (18.6 oz), has a length (distance from the notch to the tip of the sword) of 68.4 cm (26.9 in), a hilt length of 7.5 cm (3.0 in) and a scabbard length of 92.1 cm (36.3 in). The tachi is on public display at the shrine's yearly grand festival on November 15.
Two late Heian period wooden masks of Boddhisattvas designated as Important Cultural Properties and two mirrors featuring a Hōrai design designated as prefectural tangible cultural properties are in possession of the shrine. Other notable treasures held by the shrine include a piece of Sue ware, two bronze hoko, a vertical picture attributed to Ono no Michikaze, a munafuda (棟札) ridge tag with information on the building's construction from 1240, nine painted wooden hengaku votive plaques of the 36 poets and a tanzaku (narrow strip of paper) with waka by Emperor Go-Nara.
- "小村神社と国宝・金銅荘環頭大刀" [Omura Shrine and the national treasure: gilt bronze tachi with ring pommel] (in Japanese). Hidaka Board of Education. Retrieved July 03, 2011.
- "日高村文化財 国宝" [Hidaka Cultural Properties, National Treasure] (in Japanese). Hidaka city. Retrieved 2009-06-04.
- Satō & Earle 1983, p. 34
- Nagayama 1998, p. 13
- Nagayama, Kōkan (1998). The connoisseur's book of Japanese swords. Kodansha International. ISBN 4-7700-2071-6.
- Satō, Kanzan; Earle, Joe (1983). The Japanese sword. Japanese arts library 12 (illustrated ed.). Kodansha International. ISBN 0-87011-562-6.