The invention provides a production method for aluminum alloy sheets. The production method comprises the steps of compacting aluminum alloy powder, sintering, machining, performing multi-pass cold rolling, finishing and shearing and performing final annealing; blank annealing is performed on sintered blanks before cold rolling; during multi-pass cold rolling, reduction rate of each pass is lessthan 8 percent before total deformation reaches 50 percent, and the reduction rate of each pass is 10 to 30 percent after the total deformation is greater than 50 percent; the total deformation of thealuminum alloy sheets is 50 to 92 percent after multi-pass cold rolling; and cold rolling of any pass is assisted by intermediate annealing. The production method for the aluminum alloy sheets provided by the invention can be used for producing the aluminum alloy sheets in batches; compared with aluminum alloy sheets produced by a cast rolling method, the aluminum alloy sheets produced by the production method provided by the invention are low in cost, uniform in strip microscopic structure and size, free of segregation and high in strength; and compared with a method for producing aluminum alloy sheets by directly rolling powder, the production method provided by the invention has a simple technology, and is more flexible and economic to apply; and the sheets are high in compactness, anddo not have a hole flaw and the like.