为使重离子束从注入器（ＳＦＣ）不经主加速器（ＳＳＣ）直接传输到实验终端。最近在兰州重离子研究装置（ＨＩＲＦＬ）上新建了直通管道系统。在该系统中有３台偏转磁铁和３台四极透镜。本文叙述了它们的测磁内容和方法，给出了激磁曲线、径向和轴向场分布、磁场梯度、等效长度等结果。结果表明：全部符合原设计要求，并有一定的余量。 To transfer heavy ion beams from the injector (SFC) directly to the experimental end without the primary accelerator (SSC). Recently a new direct-on-pipe system was installed at Lanzhou Heavy Ion Research Facility (HIRFL). In this system there are 3 deflection magnets and 3 quadrupole lenses. In this paper, the contents and methods of magnetometry are described. The results of excitation curve, radial and axial field distribution, magnetic field gradient and equivalent length are given. The results show that: all meet the original design requirements, and have some margin.