Common Experimental Terminal composed of electron cooler and detectors is one of the experimental platform in CSRe. CSRe is a storage ring with circumference of 128.8m, The maximum magnetic rigidity is 9.6Tm. It can be used to accumulate and cool ion beams for internal target experiments. The electron cooler installed in straight section is used to provide electrons up to energy of 300keV and current of 3.0A. The detectors can be used to measure the products generated by electron-ion collision.