The effects of different cold rolling reduction ratio(ε=7%，14%，20%，27%) prior to aging on pricipitation hardening of the 1460 alloy have been studied. Some dense dislocation walls (DDW) have developed in the Al matrix in the ε= 20% sample.The matrix dislocations provide nucleation sites for the T1 phase, thus the pricipitation of the T1 is enhanced and its size remians about 100 nm, furthermore the samples reach the peak strength in a shorter time. The preferable process is 27% cold rolling reduction + 160 ℃/12 h. The results show that the tensile strength and elongation of the samples could be increased to 590 MPa and 8.0%.