In order to explore the correctness and applicability of the double-track inclined discharge car park design method in the 'Mining Engineering Design Manual ', this paper analyzes and studies the design method from the perspectives of theoretical system and design method, redefines parameters and rederives relevant parameter formulas, proving that the double-track inclined discharge car park design method in the 'Mining Engineering Design Manual ' is actually based on the car park design method. This method is correct and applicable, and can be used to guide the design of double-track inclined discharge car parks. The paper gives examples to confirm this conclusion. The paper also analyzes and discusses the one-point landing method for double-track inclined discharge car parks.