It is said that the Doei-ji temple was originally erected during the Edo period (1603-1868). At that time, it was just a small shrine, called Kannon-do. In 1895, the mine manager of the Yoshioka Copper Mine at the time visited the Kannon-do and prayed for the prosperity of his copper mine. His wish was fulfilled, and the Yoshioka Copper Mine flourished. The Kannon-do came to be called the Doei-ji temple (Temple of Plentiful Copper).