Abstract: Supported phosphorized molybdenum catalyst precursor was prepared by the sol-gel method, and reduced under atmospheric pressure by hydrogen nitrogen mixture for the first time. The results indicated thapreparation of the supported phosphorized molybdenum under atmospheric pressure was feasible. The relative surface area was 122.336 m2/g, when the MoP loading was 25%, phosphorus molybdenum ratio was 1∶1, roasting temperature was 500 ℃, hydrogen nitrogen ratio was 1∶9, reducing gas space velocity was 2400 h-1, reduction temperature was 550 ℃. Take thiophene as the model compound to investigate MoP catalytic activity, thiophene conversion rate might reach 89.17%.