Abstract: Four alloying elements including manganese,nickel,silicon and titanium were selected,and the L₂₅(5⁴)orthogonal test scheme was designed.The effects of manganese,nickel,silicon and titanium elements and their contents on the casting properties such as melting point,solidification temperature range and fluidity of Al-Mn die-casting aluminum alloys were discussed. The results show that the primary and secondary order of influence on the fluidity of Al-Mn die-casting aluminum alloys is Ti,Mn,Si and Ni elements.When the alloy composition(wt%)is Al-0.6Mn-0.1Ni-0.1Si-0.0Ti,the Al-Mn die-casting alloy has the best fluidity. The melting point of the Al-Mn die-casting alloy is 663.2 ℃,which is 75.9 ℃higher than that of the ADC12 die-casting aluminum alloy.The solidification temperature range of the die-casting aluminum alloy is 28.6 ℃,which is 27.6 ℃lower than the solidification temperature range of the ADC12 die-casting aluminum alloy,which is 56.2 ℃.The fluidity of Al-Mn die-casting aluminum alloy is comparable to that of the ADC12 die-casting aluminum alloy.