A mesh rendering system, a mesh rendering method and a non-transitory computer readable medium are provided. The mesh rendering system includes a database, a user device and a server. The server obtains preprocessing data of a cloth and a rigidbody according to initial mesh state of the cloth, initial mesh state of the rigidbody and motion of the rigidbody, wherein the cloth and the rigidbody are deformable and motion of the cloth corresponding to the motion of the rigidbody is a small deformation. The server stores the preprocessing data in the database. A finite state machine of the server receives a real-time input data from the user device through a web service and the preprocessing data, and the finite state machine outputs a deformation result of the cloth and the rigidbody to the user device through a handshake mechanism.