Abstract-Human-computer interaction and animation are introduced to Powerpoint teaching platform based on conventional teaching methods in order to improve teaching effects. Flue gas desulfurization of limestone-gypsum of thermal power plant is used to make teaching investigation as a sample in this paper because it is a mainstream technology in above 300 MW coal-fired thermal power plants. Authorware erects a bridge between Powerpoint and industrial technology to provide some demonstrations such as system recognition with equipments and its function, system operation with different substance flow and test questions with certain knowledge training. Utilizing authorware tools a Powerpoint courseware embedded by an executed file of macromedia authorware 7 Runtime is formed, which has both numerous advantages of conventional courseware and substantial features of innovation. Under the help of the courseware, not only lectures can expound those equipments and running working conditions of the desulfurization system clearly, but also learners can have a more profound understanding for mass transfer, heat transfer, momentum transfer and chemical reaction in an industrial process related to environmental protection of thermal power plant fleetly, which brings a fruit with a win-win both professor and students.