In this paper, Al-La, Al-Ti and Al-La-Ti alloys were prepared to study the influence of Ti and La on the electrical conductivity and strength of alloys. The electrical properties, strength and microstructure evolution of alloys before and after homogenization treatment at 500 ℃ for 8 h were investigated. The results show that the electrical conductivity of Al-La can keep a high level as 60.35% IACS when the content of La does not exceed 0.3% due to the precipitation of the compounds containing La, Si and Fe. The tensile strength of Al-Ti alloy was enhanced rapidly with the increasing addition of Ti due to the increasing content of Ti atoms in Al matrix. When La and Ti were added simultaneously, the strength of alloys was higher than that of Al-La alloys, and the electrical conductivity was decreased compared with that of Al-La alloys but was higher than that of Al-Ti samples, which is mainly attributed to the formation of the new secondary phase Ti₂Al₂₀La. Homogenization treatment had little impact on microstructure of alloys but reduced the number of casting defects so that increased the electrical conductivity of all samples.