An indication apparatus for a household appliance, comprising a panel with an elongated board shape and an optical assembly located at an inner side of the panel, the panel having a first light outlet portion is constructed as a bar shape extending along a length direction of the panel and a second light outlet portion; and the optical assembly comprising: a circuit substrate; at least one first light emitting element and at least one second light emitting element integrated on the circuit substrate, the first light emitting element being corresponding to the first light outlet portion; a light guide sheet, configured to receive light of the second light emitting element and to guide the light to the second light outlet portion; and a carrying frame, the light guide sheet being carried on the carrying frame, and the carrying frame being fixed on the circuit substrate and is opaque, and configured to stop light of the first light emitting element from entering the second light outlet portion and to stop the light of the second light emitting element from entering the first light outlet portion, and the carrying frame is disposed around the second light outlet portion and abuts against the inner side of the panel; and the panel comprises a base plate and an indicator plate, the first light outlet portion comprises a first through hole located on the base plate and a first light transmitting portion located on the indicator plate and covering the first through hole, the second light outlet portion comprises a second through hole located on the base plate and a second light transmitting portion located on the indicator plate and covering the second through hole, and the carrying frame stops the light of the first light emitting element from entering the second through hole and stops the light of the second light emitting element from entering the first through hole. a circuit substrate; at least one first light emitting element and at least one second light emitting element integrated on the circuit substrate, the first light emitting element being corresponding to the first light outlet portion; a light guide sheet, configured to receive light of the second light emitting element and to guide the light to the second light outlet portion; and a carrying frame, the light guide sheet being carried on the carrying frame, and the carrying frame being fixed on the circuit substrate and is opaque, and configured to stop light of the first light emitting element from entering the second light outlet portion and to stop the light of the second light emitting element from entering the first light outlet portion, and the carrying frame is disposed around the second light outlet portion and abuts against the inner side of the panel; and the panel comprises a base plate and an indicator plate, the first light outlet portion comprises a first through hole located on the base plate and a first light transmitting portion located on the indicator plate and covering the first through hole, the second light outlet portion comprises a second through hole located on the base plate and a second light transmitting portion located on the indicator plate and covering the second through hole, and the carrying frame stops the light of the first light emitting element from entering the second through hole and stops the light of the second light emitting element from entering the first through hole.