This paper introduces the method of coal dust treatment in crushing station and the present situation of dust removal system in typical open-pit coal mine crushing station in China, and expounds the research idea of determining comprehensive dust removal (suppression) system in crushing station inspired by the working principle of "range hood". Based on the design example and link optimization of the crushing station of open-pit coal mine I of Thar coalfield, this paper finally draws some conclusions on the key technologies of dust removal (suppression) system of open-pit coal mine crushing station. This study has certain reference value for the technical innovation of dust removal (suppression) system in crushing station, the realization of green mining in "crushing link", and the reduction and avoidance of ecological environment pollution in mining area.