A crimp terminal 10 for an aluminum electric cable includes: a crimping part 12 which is connected to a core wire 21 of an aluminum electric cable 20 by crimping; and serrations 15 formed in inner surfaces 13a, 14a of this crimping part 12. In the crimp terminal 10 for an aluminum electric cable, the crimping part 12 is formed into an almost U-shape by including a base 13 and paired crimping pieces 14, 14 formed unitarily with the base 13 on two sides of the base 13; the multiple serrations 15 extending in a direction orthogonal to a lengthwise direction of the core wire 21 are continuously formed in the inner surface 13a of the base 13 and inner surfaces 14a of the respective paired crimping pieces 14, 14; and multiple serrations 16 extending in the direction orthogonal to the lengthwise direction of the core wire 21 are formed in a top end 14c side of an outer surface 14b of each of the paired crimping pieces 14, 14.