The article introduces the test of beam cross-section, focusing field and transmission rate of sheet beam klystron with Wiggler focusing. Characteristics of Wiggler focusing are analyzed and the test method of improving the transmission rate is obtained. The test results show that the transmission rate varies significantly when the same set of magnets are laid in different arrangements. The mismatch of beam and Wiggler field can even lead to a transmission rate of zero. The transmission rate for different field periods is obtained and the period of 9 mm is the best choice, which results in a good transmission rate under a relatively low voltage and a magnetic field of bad uniformity.%对Wiggler聚焦带状注速调管电子注截面、聚焦磁场和直流通过率进行了测试,分析了Wiggler聚焦的特点,获得了提高Wiggler聚焦带状注束管直流通过率的调试方法.测试结果表明:同一组磁钢摆放方式不同,电子注的通过率会相差很大；聚焦磁场和电子注匹配不好时,会出现通过率为零的情况.不同周期的直流测试结果表明9 mm周期最佳,在磁场均匀性较差、电压较低的情况下都能获得良好的直流通过率.
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