A multi-functional visual electric toothbrush , comprising a main unit , an oral viewer , an interdental cleaning appliance and an electric toothbrush head , wherein: the main unit comprises a power system , a circuit system , a control system , a toothbrush driving mechanism and a housing , the power system , the control system and the toothbrush driving mechanism are connected together through the circuit system , the electric toothbrush head is connected to the toothbrush driving mechanism , and is mounted on the main unit ; the oral viewer comprises a housing , a lighting system , an observation system and a switch , the lighting system , the observation system , the power system and the switch are connected together through the circuit system and the control system , and the oral viewer is connected to the main unit ; and the interdental cleaning appliance is mounted on the oral viewer, wherein the lighting system and the observation system are arranged at a front end (200-1) of the oral viewer , and the lighting system and the observation system are connected to the main unit through the circuit system and the control system ; wherein the front end (200-1) of the oral viewer is detachably mounted on the main unit ; wherein the interdental cleaning appliance is a water pick and an interdental brush , or dental floss , or a toothbrush , or an object fetching clamp , or an object fetching hook ; characterized in that the water pick is configured to provide for rinsing with water simultaneous to the cooperative use of the water pick and the interdental brush , or the dental floss , or the toothbrush , or the object fetching clamp , or the object fetching hook . the main unit comprises a power system , a circuit system , a control system , a toothbrush driving mechanism and a housing , the power system , the control system and the toothbrush driving mechanism are connected together through the circuit system , the electric toothbrush head is connected to the toothbrush driving mechanism , and is mounted on the main unit ; the oral viewer comprises a housing , a lighting system , an observation system and a switch , the lighting system , the observation system , the power system and the switch are connected together through the circuit system and the control system , and the oral viewer is connected to the main unit ; and the interdental cleaning appliance is mounted on the oral viewer, wherein the lighting system and the observation system are arranged at a front end (200-1) of the oral viewer , and the lighting system and the observation system are connected to the main unit through the circuit system and the control system ; wherein the front end (200-1) of the oral viewer is detachably mounted on the main unit ; wherein the interdental cleaning appliance is a water pick and an interdental brush , or dental floss , or a toothbrush , or an object fetching clamp , or an object fetching hook ; characterized in that the water pick is configured to provide for rinsing with water simultaneous to the cooperative use of the water pick and the interdental brush , or the dental floss , or the toothbrush , or the object fetching clamp , or the object fetching hook . <EOS>