CrFeNiAlSiB0.1Tix (x=0.1,0.3,0.5) high entropy alloys were prepared by laser sintering. XRD、 OM、SEM and EDS, Vickers microhardness tester and electrochemical workstation were used to characterize the phase structure, microstructure, hardness and corrosion resistance of the analytes. The results showed that CrFeNiAlSiB0.1Tix high entropy alloys contain ordered BCC phase and Cr3Si phase, and Ti5Si4 phase appears after doping Ti element. The alloys are composed of dendrites and interdendrite structures, most of which are dendritic and petal-like. Cr and Si elements are enriched in the dendrite arm of CrFeNiAlSiB0.1 alloy, which is Cr3Si phase, and Al and Ni elements are enriched in the interdendrite of BCC phase. The Cr3Si phase and Ti5Si4 phase in CrFeNiAlSiB0.1Ti0.5 alloy are distributed in dendrite arm. The microhardness of CrFeNiAlSiB0.1Ti0.5 alloy reaches the maximum of 1 067 HV, and the wear resistance of CrFeNiAlSiB0.1Ti0.5 alloy is the best, which is 46.56 mg·cm-2. In 1 mol/L H2SO4 solution and 1 mol/L NaOH solution, CrFeNiAlSiB0.1Ti0.5 alloy has relatively low self-corrosion current densities, which are 104.32 μA·cm-2 and 86.41 μA·cm-2, respectively.