The utility model belongs to the technical field of the engine, refer in particular to an engine high pressure fuel pipe simulates frock. Including bottom plate, high pressure fuel pipe and spacing base, setting up a set of above spacing base on the bottom plate, each class limit position base is formed by top base and lower base, the top base all is provided with the fuel feeding port with lower base middle part, and fuel feeding port department has met screwed joint soon, screwed joint includes the higher authorities, screw piece and next, the piece of screwing sets up the middle part at screwed joint, the screwed joint inner chamber is equipped with axially extending bore, through -hole upper portion is provided with the cavity, cavity upper portion is provided with the toper chamber, the toper chamber switches on the top surface to screwed joint, a high pressure fuel pipe's both ends are connected respectively on the screwed joint of top base base under with, and screwed joint's the higher authorities and high pressure fuel pipe are connected, the screwed joint next can be dismantled with the fuel feeding port and be connected. The utility model discloses can effectively prevent the mutual interference of high -pressure pipeline and each parts of engine.