国外引种是危险性病害异地传播的重要途径，作者通过引种检疫工作实践，分析总结了我国９０年代以来国内外引种数量大、种类繁多、来源广泛、渠道多等特点，因而传带危险性病害的可能性大，检出频率高，截获次数多。我国对引种实行审批、隔离试种等检疫措施，并提出了引种与检疫工作所存在的问题与改进意见 Introduction of foreign countries is an important way to spread dangerous diseases off-site. Through the practice of introduction quarantine work, the author summarizes the introduction of large number of domestic and foreign since the 1990s, a wide range of sources, a wide range of sources, and many other channels, which carry dangerous diseases Possibility, detection frequency, interception frequency. China introduced the introduction of approval, isolation and other quarantine measures, and put forward the introduction of Quarantine and the existing problems and suggestions for improvement