The elliptic oilfilm bearing force models with and without consideration of cavitation effect was established，and the oilfilm pressure distributions of the two models based on software Fluent was compared.Through the comparison,the pressure distribution of elliptic oilfilm bearing with consideration of cavitation effect was proved to be more reasonable.The distribution of pressure field at different rotational speed of journal and different oilsupplied pressure was analyzed and compared.The results show that the higher the rotational speed is,the higher the oilfilm pressure on the upper and lower pads,as well as the bearing capacity along the x and y direction.The oilsupplied pressure has little influence on oilfilm pressure on the lower pad,however,the higher oilsupplied pressure leads to higher oilfilm pressure on the upper pad and higher loadcarrying capacity along the x direction,but lower loadcarrying capacity along the y direction.