According to the onedimensional Terzaghis consolidation theory, the relationship between the consolidation coefficient and time is deduced based on a genetic algorithm (GA), which could be used to propose a new method for evaluating the analytical solution of the consolidation coefficient. This new method avoids the disadvantages of graphical methods and eliminates the influence of initial settlement and secondary consolidation. Simulation software can be used to process the original data based on the GA principle. Compared with other traditional methods, the new method can determine the consolidation coefficient in practice with high accuracy, reliability and convenience. In addition, the GA can diminish jamming and produce a precise result.