The invention discloses a high-temperature-resisting knuckle bearing for an actuator and belongs to the technical field of structural design. The knuckle bearing is composed of a rod end shaft sleeve and a shaft core. The shaft core is formed by a mesh-shaped alloy framework and ceramic powder through a high-temperature sintering process. The whole knuckle bearing is formed in a process channel of the shaft core embedding rod end shaft sleeve. The mesh-shaped alloy framework is formed by welding high-temperature alloy wires of different diameters or formed through 3D printing, the ceramic powder is hafnium carbide or zirconium carbide or tantalum carbide, the ceramic powder and the mesh-shaped alloy framework are evenly and densely combined, and the whole shaft core is formed. According to the high-temperature-resisting knuckle bearing for the actuator, the stress strength of the knuckle bearing in work can be guaranteed while thermal transmission in the working state is prevented, and the service life of the knuckle bearing can be prolonged.