Abstract: The relationship between Drucker-Prager/Cap constitutive parameters and the relative density of Ti-30Cu mixed powder with a mass ratio of titanium to copper of 7:3 was obtained by uniaxial compression, Brazilian disk and molding tests. A powder rolling model was established by Abaqus software to study the effect of feeding height on the relative density of sheet, and the test verification was carried out. The effect of the roll gap width and rolling speed on the relative density of Ti-30Cu alloy sheet was studied by this model. The results show that under the roll gap width of 1 mm and roll speed of 10 mm·s^-1, the relative density of the sheet increased with increasing feed height from 150 mm to 300 mm. The simulation was basically consistent with the test result, and the maximum relative error was 2.15%, which verified the effectiveness of the rolling model. With increasing feeding height, and decreasing roll gap width or rolling speed, the relative density of the sheet increased.