Objective To evaluate the environmental health status of rural soil about the contamination of ascaris eggs from 2015 to 2017,and provide a scientific basis for the prevention and treatment of parasitic diseases in Guiyang city. Methods Three surveillance sites in Guiyang city were selected by stratified random sampling method. A total of 180 samples of farmland soil were collected from 2015 to 2017 to monitor the number of ascaris eggs and ascaris live eggs.Differences of contamination of rural soil samples in the three surveillance sites were compared by Chi-square test. Results The detection rate of ascaris eggs was 36.7%, 30.0%, 28.3% in the three sites respectively. The detection rate of ascaris live eggs was 33.3%, 30.0% and 25.0% in the three sites respectively. The detection rates showed downtrend in the three years. But no significant differences were observed. Conclusion The dectection rates of soil ascaris eggs and ascaris live eggs were higher in Guiyang city.Environmental renovation and fecal harmlessness in rural areas of Guiyang city should be intensified.