The utility model discloses a kind of mother and child transport vehicles, belong to iron construction prefabricated product transport technical field, mother car includes mother car frame and is set on the mother car frame mother car travelling mechanism and mother car positioning mechanism;The child car includes child car frame and is set on the child car frame child car travelling mechanism, child car positioning mechanism and mould jacking mechanism;The mother car travelling mechanism and child car travelling mechanism all include several groups of walking wheel that are spaced apart, can drive mother car and child car smoothly move on broken rail track or not horizontal track;The mother car positioning mechanism and child car positioning mechanism are respectively used for positioning the walking position of mother car and child car.The utility model of a kind of mother and child transport vehicles can effectively solve the problems, such as the existing technology's mother and child transport vehicle cannot adapt broken rail track, not horizontal track transport, influence transport efficiency even the occurrence of
derailment accident etc.