蜘蛛类脉冲星是揭示小质量X射线双星如何向毫秒脉冲星演化的“活化石”。恒星数密度高且演化时标长的球状星团是蜘蛛类脉冲星的重要诞生地。国际绝大多数望远镜对该区域蜘蛛类脉冲星研究已进入灵敏度瓶颈期。在利用“500米口径球面射电望远镜”（FAST）发现并认证5颗球状星团脉冲星（其中3颗为蜘蛛类脉冲星）的研究基础上，我们将通过本项目以历史最高灵敏度完成FAST对25个精选球状星团（11个位于阿雷西博视场之外）的观测研究。研究内容如下：深度搜寻球状星团中的蜘蛛类脉冲星、高时间分辨率研究伴星等离子体透镜放大现象及辐射、深入探究蜘蛛类脉冲星单脉冲及平均脉冲特殊现象、充分利用轨道运动对星际闪烁现象调制效应拟合轨道倾角、尝试通过探测伴星气体云信号延迟及特征谱线研究其环境。为完成上述目标，我们还将深入研究搜寻技术、脉冲门实现谱线On-Off技术等。最终实现蜘蛛脉冲星样本的新突破并形成对其物理和演化新认识。

Spider pulsars are ‘living fossils’ that reveal how low mass X-ray binaries (LMXBs) evolve into millisecond pulsars. Globular clusters are important birthplaces of spider pulsars, because of their high star number density and long evolutionary time scales. By now, the research on spider pulsars in globular clusters has gradually entered a sensitivity bottleneck period in the worldwide. We have discovered 5 globular cluster pulsars (3 of which are spider pulsars) using the ‘500-meter-diameter spherical radio telescope’ (FAST) by now. Considering the conditions mentioned above, we hope to complete further studies on spider pulsars in 25 carefully selected globular clusters (11 of them are located outside Arecibo's field of view) under the support of this project. The FAST will provide the highest sensitivity observation on these objects compared with previous observations. The research contents are as follows: in-depth search for spider pulsars in globular clusters, high time resolution study of interstellar plasma lens magnification phenomena and radiation, in-depth exploration of the special phenomenon of single pulses and average pulses of spider pulsars, and the orbital inclination angle fit using interstellar scintillation modulation effect caused by the orbital motion, and attempts to study its environment by detecting the signal delay and characteristic spectral lines of the companion gas cloud. In order to achieve the above goals, we will further study the pulsar search technology and the ‘on-off’ spectral line observation with pulse gate technology. Finally, a new breakthrough in spider pulsar samples will be achieved and a new understanding of their physics and evolution will also be formed.