Abstract: An investigation on intestinal parasite infections was performed in Ningxia with a coverage of 9 460 children and juveniles. Of the intestinal parasites detected, the infection rates were: Ascaris lumbricoides 30.6%, Enterobius vermicularis 18.3%, Trichuris trichiura 0.4%,hookworm 0.3%, Strongyloides stercoralis 0.05%, Taenia sp. 0.01%, Hymenolepis nana 0.01%, Hymenolepis diminuta 0.02%, Trichinella spiralis 1.9%, Giardia lamblia 3.3% , Entamoeba histolytica 0.06%, Entamoeba hartmanni 0.3%, Entamoeba buetschlii 0.5% , Endolimax nana 0.7%, Blantocystis hominis 0.06% and Balantidium coli 0.02%. Polyparasitism occurred in 7.4% of the infected cases. Very significant differences in infection rates of A. lumbricoides and G. lamblia were revealed in children and juveniles between rural and urban areas.