The invention relates to a GT (Global Title) translation method and device. The GT translation method comprises the steps of acquiring service parameters carried in a signaling message primitive; performing GT translation selector matching according to the service parameters so as to acquire a target GT translation selector; and acquiring a GT number carried in the signaling message primitive, and performing GT translation according to the target GT translation selector and the GT number. According to the invention, different results can be acquired through translation under the condition that the routing address information is identical in signaling messages, and thus correct signaling routing information is acquired.