以原子分子光学物理为基础，使用双原子极性分子为载体的电子电偶极矩精密测量，为探索标准模型外新物理与新机制，检验电荷共轭宇称或时间反演对称性破缺及相应的基本科学定律的适用范围提供了重要的实验依据。目前电子电偶极矩测量已到达10^{-29}e·cm量级，而降低实验统计误差使测量进一步达到10^{-30}e·cm精度是需要解决的一个关键问题。我们使用氟化铅(PbF)为载体，采用缓冲器冷却方法制备稳定低速高束流密度PbF冷分子束源，并研究其高分辨率的共振增强多光子电离探测方式，进而设计基于拉姆齐干涉法测量电子电偶极矩的实验方案，为在有限的实验时间内提高实验统计误差精度提供了一个创新性方法，并为电子电偶极矩测量最终达到10^{-30}e·cm精度奠定了基础。非零电子电偶极矩值的最终获得，将精确检验对称性破缺的机制，理解宇宙物质起源，引导粒子物理大装置实验的设计与研制，具重要的科学与社会意义。

Employing the atomic, molecular and optical physics as the research background, the precision measurement of the electron’s Electric Dipole Moment (eEDM) using diatomic polarized molecules provides the vital experimental basis in exploring the new physics and mechanism beyond the Standard Model, as well as testing the Charge-Parity or Time-reversal violation and the applicability of fundamental scientific principles. Up to now the eEDM measurement has reached the precision level of 10^{-29}e·cm, while the key issue emerges from how to alleviate the influence of the statistical uncertainty of the experiment and reach the precision level of 10^{-30}e·cm. We adopt the Lead Monofluoride (PbF) molecule as the candidate for the eEDM measurement, utilize the buffer gas cooling method to produce PbF cold molecules of high flux density and low velocity, and study the high resolution Resonance-Enhanced Multi-Photon Ionization detection scheme of the PbF molecules, from which an experimental design based on Ramsey Interferometry leading to eEDM measurement is concluded. Our innovative method offers the experimental enhancement of the statistical uncertainty in a limited data-collection time, and will substantially contribute to the precision measurement of eEDM in a level of 10^{-30}e·cm. The non-zero measurement of eEDM can eventually exhibit significant impact on the scientific communities and the societies, including the test of the symmetry violation mechanism, the origin of the Universe and the design of large facilities in particle physics.