The utility model discloses an experiment table for measuring the characteristics of a mechanical supercharger. The experiment table comprises an electromotor, an additional shaft No.1, a torque revolution speed sensor, an additional shaft No.2, a plastic ball valve, a torductor and a computer. The electromotor with a belt wheel No.1, the torque revolution speed sensor in linear connection with the torductor and the mechanical supercharger with an air outlet pipe and an air inlet pipe are sequentially mounted on an experiment table rack in a manner that the revolution axes are parallel to each other. The additional shaft No.1 with a belt wheel No.2 and the additional shaft No.2 with a belt wheel No.3 are mounted on the two sides of the torque revolution speed sensor and connected through a coupling. A belt No.1 is connected with the belt wheel No.1 and the belt wheel No.2; and a belt No.2 is connected with the belt wheel No.3 and the mechanical supercharger belt wheel. A temperature sensor No.1 and a pressure sensor No.1 are mounted on the air inlet pipe with an air flowmeter at an inlet; and a temperature sensor No.2 and a pressure sensor No.2 are mounted on the air outlet pipe with the plastic ball valve at the tail end. The temperature and pressure sensors are connected with the air flowmeter and the computer.