论文使用电子倍增CCD（EMCCD）的单光子计数模式对量子成像实验中常用的通过自发参量下转换产生的纠缠光进行了观察并测量。在实验中，使用波长为406nm的半导体激光器作为泵浦光源，通过I型BBO晶体产生了波长812nm的下转换光。利用符合电路测量到下转换光子对比较明显的时间关联。使用EMCCD观察了共线和非共线情况的下转换光场，观察到I型非共线下转换光子对的环状分布。在此基础上，对远场位置近共线情况的动量进行测量，使用Python语言编程读取了Andor公司EMCCD的专用文件格式并计算了两个光子动量的相关性，从而初步验证了光子对存在纠缠。另外，实验上评估了EMCCD电子倍增增益、曝光时间等因素对噪声的影响，并据此对仪器设置进行了一定优化。

In this thesis, we study the properties of entangled photon pairs produced by spontaneous parametric down-converted (SPDC) with an EMCCD. By utilizing a type I BBO crystal pumped by a laser diode with its wavelength centered at 406nm, SPDC photon pairs were produced. With an electron-multiplying CCD (EMCCD) operated at photon counting mode, we observed and measured the entangled photons produced by SPDC which is commonly used in quantum imaging research. With the aid of two single photon detectors and a coincidence circuit, we observed obvious time correlations between down-converted photon pairs. Then, by using the EMCCD, we observed the down-converted light under both collinear and non-collinear conditions and the ring distribution of the type I down-converted photon pairs. On this basis, in far field plane, momentum correlation of photon pairs in near -collinear situation was measured and calculated by counting the number of coincidences as a function of the sum of the pixel coordinates. Besides, experimental evaluation of the influence of the electron multiplying gain of the EMCCD and the exposure time on the noise is presented. Accordingly, the optimization of the setup of the EMCCD is given.