The invention relates to an oil distribution pump component/assembly air tightness detection machine which comprises a rack. One or more air tightness detection components are arranged on the rack. A conveying part for to-be-detected products is arranged below the air tightness detection components. A jacking component for the to-be-detected products is further arranged below the air tightness detection components. A material removing mechanical arm component is arranged at the position, located on one side of the air tightness detection components, of the rack. Due to the fact that the multiple air tightness detection components are arranged on the air tightness detection machine, the measuring efficiency is improved. Tool plates are cyclically conveyed through a speed chain, positioning and releasing of the to-be-detected products can be achieved in cooperation with an initial positioning component and the jacking component, and full automation of feeding is achieved. When product detection goes wrong, a touch screen can give an alarm automatically, the machine stops running, and the material removing mechanical arm component can remove unqualified products automatically; and the products can be overall elevated by the jacking component during air tightness detection of the products, and the phenomenon that the acting force of an air cylinder directly acts on the speed chain is avoided.