The invention discloses an intelligent manufacturing-oriented chemical process simulator which comprises a human-computer interface module, a simulation operation module, a model extension module, a service function module, a database, and a project management module, wherein the human-computer interface module are in visualized interacting with the simulation operation module, the model extensionmodule and the service function module; the simulation operation module identifies and configures a chemical simulation model and performs simulation according to the service simulation requirementsof the service function module; the model extension module realizes MES layer simulation and expansion of a PCS layer chemical simulation process through the MES layer multi-agent simulation, the service function module calls corresponding data in the database to carry out MES layer simulation and realize simulation analysis of different service functions; the database interacts with the simulation operation module and the service function module, sends a response control instruction to the simulation operation module according to the service simulation requirement of the service function module, and acquires and stores the simulation data of the simulation operation module; and the project management module is used for managing the organization structure of the whole system. The chemicalprocess simulator has high universality and expansibility.