Abstract: The effect of process parameters on the strength of as-cast 7075 aluminum alloy tube after spinning is crucial.Taking tensile strength and yield strength as the forming quality indicators, the effects of process parameters such as reduction amount, preheating temperature, feed ratio and friction conditions on the strength of casting tubes after spinning were systematically analyzed.The results show that with the increase of the reduction amount, the tensile strength and yield strength of tubes increase; with the increase of preheating temperature or the feed ratio, the tensile strength and yield strength of tubes increase firstly and then decrease; with the increase of friction coefficient, the tensile strength and yield strength of tubes increase firstly and then decrease, but the changes are not obvious.