An alloy wire with shape memory characteristics and super elasticity includes: a first section having a first phase change temperature value, wherein the first phase change temperature value is smaller than a use environment temperature for providing super elasticity; and a second section connected to the first section. The second section has a second phase change temperature value, and the second phase change temperature value is greater than the use environment temperature for providing shape memory characteristics. The first phase change temperature value is between -30 DEG C and 15 DEG C, and the second phase change temperature value is between 25 DEG C and 90 DEG C.一種具有形狀記憶特性及超彈性之合金線材包括:一第一區段,其具有一第一相變化溫度值,該第一相變化溫度值小於一使用環境溫度,用以提供超彈性;以及一第二區段,連接該第一區段,該第二區段具有一第二相變化溫度值,該第二相變化溫度值大於該使用環境溫度,用以提供形狀記憶特性。