Aiming at solving the problem of electromechanical collaborative design in the water conservancy and hydropower industry, the role and task of the designers in different mechanical and electrical professions were assigned reasonably according to the idea of collaborative design based on the Enovia VPM collaborative design platform. Then, the method of customizing electromechanical settings for water conservancy and hydropower industry was discussed, and an example was given to illustrate the method of building the electromechanical model library and saving it to the Enovia VPM platform. Finally, the implementation method of electromechanical collaborative and parallel design was studied by introducing the professional framework, the coordinate and model of the workshop to the platform. Its application to the collaborative design for the hydropower station has shown that this platform can realize the real-time collaborative and parallel design of different electromechanical professions, shorten the construction period and reduce the labor intensity of the designers. Moreover, it is convenient for the designers to change and optimize the original design scheme, which will in turn benefit the water conservancy and hydropower industry with combined design experience of heritage and innovation.