The video introduces the SOLIDWORKS user interface and its main components. Upon opening, the welcome screen provides access to parts, assemblies, drawings, and tutorials. The interface includes the menu toolbar for basic commands, the command manager for modelling tools, the graphics area for viewing and interacting with models, the feature manager tree for editing and tracking model history, and the task pane for tools like the design library and appearances. The heads-up toolbar offers quick view and appearance options. Tips include maximizing the graphics area, keeping essential tabs visible, and hiding unnecessary panes to streamline modelling and improve workflow efficiency.