Abstract: To upgrade the diesel, a new hydrocracking unit with 2.0 Mt/a capacity was built in Sinopec Qingdao Refining ＆ Chemical Company. The caliberation for the start-up operation indicate the good performance of the catalyst system of FF36/3963/FC32, under the conditions of 367℃in refining stage, cracking temperature of 381℃ with full recycle mode，the sulfur removal rate is 99.35% with the light fraction yield of 94.30%. In the normal production, the jet fuel yield can reach 36.55% by mild refining、more severe cracking conditions and more amount of recycle tail oil.