The utility model relates to a copper -aluminum wiring terminal, including aluminium system body, copper body, aluminium system body and this body coupling of copper are equipped with the connecting hole on the copper body, the junction of aluminium system body and copper body be the trapezium structure. The advantage is: a reliability that is used for aluminium conductors (cable) steel -reinforced and gate equipment terminal to connect the use, and the junction adopts the trapezium structure to increase the lifting surface area of copper body with aluminium system body part, makes the atress homodisperse, has eliminated the vulnerabilities of atress, has improved binding post. can satisfy the external damage on resisting many times general meaning through the experiment, when suffering serious external damage, even binding post buckles, also not have obvious breaking point. Once using widely, also reduced the pressure that patrols informant person when having reduced the fastener cost, reduced because of terminal connector damages the tripping operation number of times that leads to the fact, lightened the burden of examining in " spring and autumn ", improved service reliability greatly.