The invention discloses a key structure and an electronic wearable device, the key structure comprises a circuit board, the circuit board is provided with a plurality of first connecting terminals and a plurality of second connecting terminals, and the plurality of first connecting terminals and the plurality of second connecting terminals are in one-to-one correspondence and are separately arranged; the plurality of elastic conductive parts are in one-to-one correspondence with the plurality of first connecting terminals and are electrically connected with the plurality of first connecting terminals, and the plurality of elastic conductive parts are in one-to-one correspondence with the plurality of second connecting terminals and are arranged at intervals; the button comprises a driving key and a plurality of abutting parts connected to the driving key, the abutting parts are in one-to-one correspondence with the elastic conductive parts, and when the driving key is driven to different directions, the driving key can drive one abutting part to abut against the corresponding elastic conductive part to generate elastic deformation; according to the utility model, the functions of a plurality of keys are integrated on one button, the structure is small and exquisite, the occupied space is small, the cost is reduced, the service life is prolonged, and the reliability is high.