To deeply study lubrication characteristics of deep cavity hybrid conical bearing, oil film generalized Reynolds’ equation in polar coordinates, energy control equation and the related expressions were deduced with consideration of turbulent fluid, heat effect and axial velocity of fluid film. Finite numerical difference method was used to discretize equations and Patankar’s positive coefficient law was adopted to process coefficients and constant terms of the discrete equation. Results showed that the Patankar’s positive coefficient law efficiently solved reverse-flow at Oil cavity edge. Under circumstances of big eccentricity and high speed, temperature of lubricating oil film gets high and the influence of bearing performance should be taken into account. The flow is proportional to the input pressure and independent of speed. With the increasing of speed, dynamic effects are improved and the bearing eccentricity is small with light loads. Deep cavity hybrid conical bearing shows excellent performances of static pressure up and dynamic lubrication, and the theoretical analysis results are agree well with the experimental tests.