A total number of 435 fecal samples from native horses, aged between 6 months to 10 years of oth sexes, were collected from eight cities at West Bank, Palestine during January 2015 to January 2017. The Mc Master egg counting and sedimentation methods were used for the detection of Parascaris equorum eggs in the collected samples. The overall prevalence rate of Parascaris equorum was found to be 15.6% (68 out of 435), and this rate varied significantly depending on the city. The highest prevalence rate was in Jericho 41.1% followed by Hebron 26.3%, Jenin 19.4%, Qalqilya 19.4%, Tulkarm
12.2%, Nablus 11.8% and Ramallah 5.3%. The results revealed also that there was no significant difference in the prevalence rate of Parascaris equorum between male 15% and female 16.5% as well as between young 17.6% and adult 10.9% horses.