Abstract: Dragline rational operation mode was studied to improve the efficiency and reduce the cost. Dentified dragline excavation radius into end-slope leveling radius, minimum excavation radius and maximum rational excavation radius seperately. Based on 8750-65 dragline parameters and on-site operation conditions, paper deduced dragline’s kinds of operation mode including initial state, reverse shifting, unidirectional advancing, round trip advancing, etc., concludes the relations of working bench height, shifting distance, shifting steps and advancing distance, recommends 8750-65 dragline apply roundtrip advacing mode. The conclusion provides accordance to the formation of standard dragline operation mode and is of great help to guide the design and improvement of blasting, striping and mining, providing detailed analysis method and theoretical accordance.