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The node-based smoothed point interpolation method (NS-PIM) is developed for soil consolidation analysis based on the Biot’s theory. Both the shape functions for displacements and pore pressures are constructed using the point interpolation method which is easier to be programmed than the other meshless methods. Then, a 2D consolidation problem under ramp load is solved. The results show good agreement with those certified results. Meanwhile, convergence features of different solutions are studied and useful convergence features are found. Thus a simple method is introduced to estimate the errors of the model with rough grids. Obviously, it is promising to apply NS-PIM to the analysis of consolidation problems.