Water heater outdoor unit and heat pump water heater

The invention provides a water heater outdoor unit and a heat pump water heater, and the heat pump water heater comprises an outdoor unit main body and a heat absorption device; the outdoor unit body comprises a shell, a fan and an evaporator, the fan and the evaporator are both arranged in the shell, the air outlet face of the fan faces the evaporator, and the outer wall face of the side, close to the evaporator, of the shell is a heat exchange face. The heat absorbing device comprises a heat absorbing plate and a guide rail, the guide rail is arranged on the outer surface of the shell, the two ends of the heat absorbing plate are a fixed end and a movable end respectively in the extending direction of the guide rail, the fixed end is arranged at one end of the guide rail, and the movable end moves in the extending direction of the guide rail. The heat absorbing plate has an extending state and a folding state, in the extending state, the moving end is located at the other end of the guide rail, and the heat