1997- 1998年对四川省雅安、绵阳、洪雅等地区所产不同规格的黄鳝的寄生虫感染情况作了初步调查。查出 5种寄生虫 ,其中以隐藏新棘虫和胃瘤线虫幼虫感染率较高 ,分别达 5 7 4 %和 4 1 2 % ;感染强度大 ,最高分别达 2 0 5条和 3 2条 ,是四川地区人工养殖黄鳝应重点防治的两种寄生虫 In 1997-1998, a preliminary investigation was made on the parasite infection of rice fields of different sizes produced in Ya’an, Mianyang, Hongya and other areas of Sichuan Province. Five kinds of parasites were found, of which the infection rates of new nematodes and nematode nematode larvae were higher, reaching 57.4% and 41.2% respectively. The infection intensity was the highest with the highest respectively reaching 205 and 32 , Which is the two parasites that should be emphatically controlled in the artificial cultivation of eel in Sichuan