Established in 1922 under the name Guang Hua and later renamed Mei Hua in 1932 the Bagansiapiapi Methodist School was forced to close and suffered damage due to the war before reopening in 1949. The name "Methodist" was officially adopted on January 15, 1958. Over time, the school continued to grow, expanding its branches to Pulau Halang, Sungai Bakau, and Panipahan.

Currently, the leadership of the Bagansiapiapi Methodist Educational Institution is held by Juswanto as Chairman of the Foundation, Rev. Zennedy Manik, S.Th., as Director of the Institution, and Suwantono Eleks, S.Pd., as Principal of Senior High School.

Since its founding, SMAS Methodist Bangko has graduated over 1,000 alumni across more than 40 batches, producing leaders, professionals, and academics on the international stage.