The invention discloses a music score writing demonstration board for music teaching and a use method thereof. The invention belongs to the technical field of teaching aids. The demonstration board comprises a demonstration board body and a writing board body. The demonstration board body comprises a shell with an opening and a transparent white board embedded at the opening of the shell; a lightreinforcing plate is arranged at the inner bottom of the shell; a plurality of partition plates are arranged in the shell; and a light adjusting mechanism is arranged between every two adjacent partiti...