The main goal of the Chinese ADS front-end demo superconducting linac(CAFe)is to develop the key technologies of a superconducting front-end linac and demonstrate high power continuous-wave(CW)proton beam with 10 mA for Accelerator Driven System(ADS).One of the crucial challenges is the reliability and availability of the accelerator.By the end of 2017,a CW beam commissioning test around 27 h was made.The majority of beam trips is from the SRF system in the test.Therefore,our intense effort was to improve the reliability of the SRF system in 2018,which are described below.