The utility model relates to a multifunctional building automation system simple experimental table. The experimental table comprises a direct digital controller DDC, a strong power supply and a weak power supply which are connected with DDC and are for powering an experimental device and for providing digital signals, a sensor for providing digital signals, a manipulator for reading the digital signals and for inputting analog signals, an executor for executing the analog signals, a fan for simulating an air-conditioning fan system, and a cable for stand-alone debugging and on-line debugging. The cable is connected with a computer or another experimental device. According to the utility model, a modular design is adopted, and an experimenter can choose different types of sensors and executors to simulate different building equipment automation systems, such as an air system, a water system, cold and heat source systems, thus the building equipment automation framework can be directly presented.