The paper presents a study that focuses on the implementation of a computer-aided system for electric machinery in laboratory courses. The designed system is suitable for industrial standards and educational requirements. Experimental data (eg voltage, current, speed, torque, etc) can be accessed in the system and recorded in the computer by a data acquisition interface. In addition, the data can be transferred into calculated values with computer programs based on the user's needs. Then, the system automatically sketches output curves to meet these requirements. The software of this system is written by Virtual Basic and is suitable for a Windows environment. During the laboratory experiment, the data is recorded, charted, plotted and calculated in real time. Online help improves the efficiency of the laboratory. This computer-aided system is also suitable for industry for new electric machinery product development.