The invention relates to a method for reinforcing a shallow soft foundation with pressure filling sheet stones and/or block stones. The method comprises the following steps: 1) construction preparation: preparing sheet stones and/or block stones and broken stones; 2) site leveling; 3) sheet stones and/or block stones paving; 4) mechanical compaction; 5) pressure filling flagstone and/or block stone quality detection; 6) broken stone paving and mechanical compaction. According to the method provided by the invention, abandoned projects can be greatly reduced, the bearing capacity and the deformation modulus of the foundation are improved, the treatment quality of the foundation is improved, and the environment is protected.