<p>With the increasing construction of port facilities, cross-sea bridges, and offshore engineering projects, uplift piles embedded in marine sedimentary soft soil are becoming increasingly necessary. The load-displacement curve of uplift piles is crucial for evaluating their uplift bearing characteristics, which facilitates the risk evaluation, design, and construction of large infrastructural supports. In this study, a load-displacement curve model based on piezocone penetration test (CPTU) data is proposed via the load transfer method. Experimental tests are conducted to analyze the uplift bearing characteristics and establish a correlation between the proposed model and CPTU data. The results of the proposed load-displacement curve are compared with the results from numerical simulations and those calculated by previous methods. The results show that the proposed curves appropriately evaluated the uplift bearing characteristics and improved the accuracy in comparison with previous methods.</p>