The density and viscosity of dichlorophenylphosphine sulfide (C6H5PSCl2) over a temperature range of (303.16 to 423.40) K were measured. The vapor pressure of dichlorophenylphosphine sulfide in the range of (417.83 to 448.12) K were measured by a static method. The density data were fitted to a second-order polynomial, the viscosity data were fitted to the Andrade equation, and the results of vapor pressure data were fitted to the Antoine equation. The density data and vapor pressure data of dichlorophenylphosphine sulfide were compared with literature values.