The invention relates to a legehenne smooth farm and a legehenne breeding method. On the farm, a
manure release channel is arranged under a coop frame of a barton, a main extraction
chimney and an auxiliary extraction
chimney are arranged above the coop frame, and indoor parts of the main extraction
chimney and the auxiliary extraction chimney are transparent, and lights are arranged in the indoor parts; the coop frames are symmetrically arranged at two sides of the main extraction chimney and the auxiliary extraction chimney; the lower port of the main extraction chimney extends to the middle lower part of the
manure release channel, and the lower port of the auxiliary extraction chimney is close to the top of the coop frames; the width of the upper port of the
manure release channel is matched with that of the coop, the lower part of the manure release channel is furled to be matched with the lower port of the main extraction chimney; and a ventilating duct is arranged under the channel, is communicated to the air inlet at one end of the coop, and uniformly distributes air to the barton through an air distributing port. The barton forms nature air flowing under the actions of air pressure and thermal pressure to ensure that air bath type directional
airflow is formed in the barton, and air in the barton is consistent and fresh throughout the year; and the legehenne smooth farm has reasonable
layout and complete functions, is convenient to control various environment indexes in the barton, has light disinfection burden, less health-care administration, low breeding cost, smooth whole breeding and less epidemic situations, low
energy consumption and improved breeding efficiency.