Abstract: In order to solve the problems of annular uniform and stable flow distribution for the cladding molten metal in the solid-liquid cast-rolling bonding (SLCRB) process of bimetallic clad pipes, an annular delivery device comprised with three-level annular stepped shunts and the tapered buffer was proposed and designed. Besides, the fluid dynamics model during the steady flow distribution process was established based on the commercial software Fluent. The influence of the delivery device structure and the cast-rolling speed on system flow field was analyzed, and the internal structure and flow distribution conditions of delivery device were presented to obtain a uniform and stable outlet flow field, which was verified by the water model experiment. The results show that it contributes to the uniformly flow distribution if the aspect ratio of the annular delivery device channel is no smaller than 1, and the stream buffer action of the tapered buffer region is crucial. The Pb-Al bimetallic clad pipes with outer diameter of 38 mm and inner diameter of 26 mm was produced successfully at the cast-rolling speed of 1.2 m/min. The thickness of the cladding metal is uniform and the combined effect at the interface is well.