The invention provides a chiseling-free secondary pouring method and device. The method comprises steps as follows: a steel reinforcement framework is mounted on a secondary pouring joining surface on a structural framework in a to-be-poured concrete pouring area; a screen mesh is mounted on the steel reinforcement framework; primary pouring is performed in the steel reinforcement framework area; secondary pouring is performed on the joining surface after primarily poured concrete is hardened, the screen mesh mounted on the steel reinforcement framework is taken as an isolation tape for secondary pouring, accordingly, the original concrete joining surface formed through primary pouring can have ideal coarseness, and secondary pouring can be directly performed without separate chiseling of the original concrete joining surface formed through primary pouring. Besides, due to arrangement of the screen mesh, laitance is not prone to occur on the original concrete joining surface, the joining surface does not need to be cleared before secondary pouring, the construction workload is effectively reduced and the work period is effectively shortened.