Wat Lum Mahachai Chumphon was established in 1691. Originally, there were 2 temples located nearby, namely "Wat Lum" and "Wat Noen". Krom Luang Wachirayanawong when holding the monastic rank of Phrayanwaraporn Chanthaburi province faculty position came to inspect the monks Therefore, the Lum Temple and the Noen Temple were combined into one temple. then called the Lum Temple