Aiming at the comprehensive performance bottlenecks of mining intelligent special equipment under extreme working conditions, such as insufficient structural reliability, low operating energy efficiency and dynamic response hysteresis, the application of advanced mechanical manufacturing technology in equipment performance optimization is carried out. The matrix-reinforced phase in-situ metallurgical bonding is realized by laser cladding gradient functional materials, and the cross-scale regulation of the interface performance between the wear-resistant layer and the high-toughness matrix is completed. Based on the integration of variable density topology optimization and selective laser melting additive manufacturing process, the integrated net forming manufacturing of lightweight lattice structure and special-shaped flow channel is realized. The closed-loop control of process parameter chain based on digital twin and the active compensation strategy of assembly error are adopted to improve the manufacturing accuracy and realize the collaborative optimization goal of equipment performance. Comparative experiments show that the optimized equipment prototype has significant advantages in ultimate bearing capacity and operational stability, which verifies the core enabling value of modern advanced manufacturing technology in promoting the high-end process of mining equipment.