A light-emitting smell-altering aroma dispenser includes a casing having a bottom opening blocked by a base member, heater members supported on trays above a control circuit board in the casing, tubular aroma containers inserted through the top wall of the casing into the heater members at the trays and holding a respective aromatic substance for heating by the heater members to release a pleasant smell subject to the control of the control circuit board, and light emitting devices controlled by the control circuit board to emit light toward the aroma containers when the aroma substance in the aroma containers is being heated to release a pleasant smell.