The utility model relates to an electric energy measurement wiring vector analysis trains drawing board, including the panel, have the scale mark and locate load hexagonal picture in the panel, and along the radial at least adjustable angle pointer that sets up of load hexagonal picture, the one end of adjustable angle pointer be located load hexagonal picture the center and with panel rotatable coupling. Fixed to the drawing board key elements such as the direction of drawing electric energy measurement vector diagram, angles, what the simulation was differentiated according to training needs during the use connects line knot resolute, as three -phase three -wire is meritorious, three -phase three -wire is idle, three -way four -wire is meritorious, three -way four -wire is idle etc. Install the adjustable angle pointer of different quantity, the vector lines of voltage and electric current represents to the adjustable angle pointer, according to the big or small rotation adjustable angle pointer directive position of voltage and electric current for the direction of vector of displaying voltage and electric current can utilize repeatedly, and the vector diagram of the mode of connection of adaptation difference shows, reduces the training work volume, and visual and understandable, efficiency and effect.