Method for manufacturing plant-based leather does not produce water and air pollution typically associated with artificial leather manufacturing processes, and does not require the pattern-making processes of artificial leather, effectively imitating natural leather with great flexibility in pattern variation

The present invention provides a method for manufacturing plant-based leather, which includes the following steps: first, preparing a plant-based substrate which is a sheet made of natural rubber and extruded after being added and kneaded with a first foaming agent, a foaming auxiliary agent and a thermoplastic material; next, applying a surface material to the surface of the plant-based substrate, in which the surface material includes a second foaming agent, a foaming auxiliary agent, and a thermoplastic material; and finally, heating the plant-based substrate and the surface material for foaming and curing, forming a predetermined pattern on the surface of the plant-based substrate, and obtaining the plant-based leather after cooling. The thermoplastic material is either a polar or non-polar material. In the step of applying the surface material, the second foaming agent in the surface material is either a high-temperature foaming agent, or includes high and medium temperature foaming agents, or includes h