Suzhou classical gardens represent the essence of Chinese classical gardens, characterized by complex spatial structures and rich garden elements. Visitors usually experience diverse spatial perceptions in Suzhou gardens, including the commonly mentioned experience of “view changes with step movements (VCWSM)”. Through the perception survey in the Master-of-Nets Garden, which is one of the most noted classical gardens in China, this study extracted the key factors that affect the generation of “view changes with step movements”, that is, the distance between the viewpoint and the main scene, and their position relationship. Based on it, this research developed a graphic scripting structure of the parametric system authored in Grasshopper. Finally, a pocket park was selected as the design site. Its path network with viewpoints was generated by Grasshopper, and trees were set between each viewpoint and the main scene to create different views, generating the perception of VCWSM. This process demonstrates the application of classical garden spatial structure to modern landscape design through a parametric approach, a methodology that can be adapted for the modern re-interpretation of other classical garden space designs.