In order to assist developing the independent intellectual property key technology of 1 000 MW super-critical lignite boiler, this paper studies the type-selection optimization of pulverizing system used for 1 000 MW super-critical lignite boiler. The study is based on the type-selectionof boiler, coal pulverizing system, and coal mills from Datang Keshiketengqi 2× 1 000 MW super-critical thermal power plant. The type-selection parameters of coal pulverizing system is proposed for 1 000 MW power plant, The parameter scope of the pulverizing system is also proposed, which could give technical support for the development of 1 000 MW-order super-critical lignite boiler.