The invention relates to a manufacturing method for a high-purity aluminum rotating target. The manufacturing method comprises the following steps of: selecting a high-purity aluminum circular ingot,and performing thermal perforating and extruding treatment on the high-purity aluminum circular ingot, thereby obtaining high-purity aluminum tube blank; straightening and performing annealing treatment; selecting an aluminum alloy as a target end head material, and performing surface hard oxidization treatment on the target end head material, thereby obtaining an aluminum alloy end head; and welding the aluminum alloy end head of the high-purity aluminum tube blank, thereby obtaining the high-purity aluminum rotating target. According to the high-purity aluminum rotating target manufactured by the manufacturing method, defects such as cracks, air holes, looseness, impurities and layering inside a microscopic structure are greatly reduced, the microscopic structure is fine and uniform, andthe grain size is not greater than 100 microns; a leakage rate value measured by a helium mass spectrum leakage detector is smaller than or equal to 5*10<-10> Pa.m<-3>/s; and dimensional tolerance and integral flatness form and location tolerance in the length direction, the width direction and the thickness direction are as low as 0.05 mm, surface roughness is smaller than Ra 0.4 micron, and processing precision meets user requirements.