Abstract: The Φ6.5 m anvil iron is super-large special-shaped forgings, which is subjected to strong vibration and alternating loads during the working process of hydraulic piling hammer. Therefore, for the problems of serious loss of raw material and large difference in three-dimensional properties in the traditional free forging process, a near net forming technology for Φ6.5 m anvil iron forgings was proposed, and the overall process scheme was to use free forging to blank and use loose tooling forging to form. The filling process of Φ6.5 anvil iron forgings was simulated by finite element simulation software Forge. Then, through the analysis on load-stroke curve, filling effect,point tracking of effective strain, metal flow, stress state, equivalent strain and dynamic recrystallization, the key forming process parameters and methods were optimized. Firally,the production verification shows that, compared with the traditional free forging process, the weight of forgings is reduced by 63770 kg, and the steel ingot is saved by 126000 kg per piece, which solves the problems that the filling forging pressure exceeds the limit load of equipment and the fiber structure of forgings is not continuous, and the near net forming of Φ6.5 m anvil iron forgings is realized.