BEPCⅡ (北京正负电子对撞机重大改进工程 )要求其直线注入器提供更高的能量和流强 ,为此必须改进正电子产生靶前后的加速管 ,以提高加速梯度 ,并消除原有加速管因长期运行后性能有所下降的隐患 .本文叙述了新加速管的高功率测试 ,包括测试装置的设计、建立 ,微波功率源 (速调管 )的调试和加速管高功率测试结果及其分析 . BEPC II (Major Improvement Project of Beijing Electron Positron Collider) requires its linear injector to provide higher energy and flow rate. Therefore, it is necessary to improve the accelerating tube before and after positron generation to improve the acceleration gradient and eliminate the original acceleration This article describes the high-power test of new accelerators, including the design and establishment of the test device, the commissioning of microwave power sources (klystrons), and the high-power test results of accelerators Analysis.