To provide a farm of a cross breed of wild and domestic ducks in which advantages of the method for farming of the cross breed of the wild and domestic ducks are sufficiently exhibited and the yield can be increased without causing trouble such as invasion of a foreign enemy or a flight or an electric shock of the cross breed of the wild and domestic ducks.

This farm 1 of the cross breed of the wild and domestic ducks is provided with a water flow ditch 3 formed around a paddy field 2, a protective fence 5 stood along a levee 4 on the outside of the water flow ditch 3, a reservoir 6, etc., provided by communication with the water flow ditch 3 in a corner part of the paddy field 2. The protective fence 5 is composed of a shielding plate 9 stood nearly vertically on the ground surface, a horizontal plate 10 nearly horizontally arranged on the shielding plate 9 and a plurality of wires 11 stretched nearly horizontally at a mutual interval kept therebetween in the upper part of the horizontal plate 10.