Abstract: Based on the experiment database of upflow boiling in the vertical round tube from 15 MPa to critical pressure of water, the Katto, Bowring, Hall-Mudawar, Alekseev correlation and LUT-2006 are comparatively studied. With the error analysis of the CHF correlations to the experiment database, the applicability of these correlations is estimated and the parametric trends of CHF with pressure from 15 MPa to critical pressure are proposed. Findings of this study have a positive effect on further development of CHF prediction method, especially under high and critical pressure area.