Ecological pig farm

The invention discloses an ecological pig farm which comprises one or more rows of houses. One or more unit pigpens are separated in each row of houses. The houses are arranged at the bottom of a hill slope or in a region with smooth terrain on the hill slope. Enclosures are arranged at the two sides of each house along the hill slope upwards and the front face of each house respectively. A movement zone of ecological pigs is defined by the houses and the enclosures. The gradient angle of the movement zone is set to be 5 degrees to 15 degrees. According to the ecological pig farm, the pig houses are built on a hill, under the condition that mountain forest trees are not damaged and the pigs are raised according to the wild habits of the pigs, the raising production cost can be reduced, the market competitiveness can be improved, produced pork products have the healthy quality popular among customers deeply, the market prospect is wide, and in addition, a large number of cultivated land and fertile farmland ca