Based on extensive market research, a branch pulverizer designed for urban waste branch processing was developed. The branch feeding mechanism is driven by a hydraulic system and uses a "floating" working principle to accommodate branches of various diameters. The pulverization function is achieved by straight blades arranged radially on the knife disc. The pulverized wood chips are expelled through a discharge pipe by high-speed airflow generated by a scraper mounted on the high-speed rotating knife disc. Experimental results show that the machine operates smoothly and reliably; it can pulverize branches with diameters up to 200 mm; and has a high production rate, generating wood chips at a rate of 218 m³·h⁻¹. However, issues include high noise levels and high fuel consumption. Future research should focus on enhancing the theoretical and experimental study of cutting forces during branch pulverization, further optimizing the pulverization device, reducing noise, and decreasing fuel consumption.