Abstract: Excessive dust concentration in chicken house is hazardous for workers＇ health and poultry productivity, and also is harmful to the environment. To understand dust spatial distribution is helpful to analyze the emission and transmission of dust, and is helpful to develop more effective control methods for dust. The content of dust in the door and central of chicken house in scale chicken farm throughout the year was detected. Results show that the full dust of central bit point had significant difference between spring and winter as well as between autumn and winter （P〈0.05）, and had very significant difference between summer and winter （P~0.01）. The respirable dust PM10 had significant difference between summer and autumn （P〈O.05）, and had very significant difference between spring and winter as well as between autumn and winter （P〈0.01）. The seasons respirable dust PM10 in central had no significant difference with that in door（P 〉0.05 ）. The full dust TSP in central also had no significant difference with that in door（P 〉0.05）.