The changing rule of vessel's volume with correspondence high of complex containers was studied using ProE software. Edible oil drum was taken as example. The vessel volume indication method has solved effectively with the UDA analysis function in ProE behavior modeling module, the surface module formidable function and procedure edition function in the Pro/Program to intellectually mark 3D volume's scale as well as indication volume 3D character in the vessel surface. This can guarantee volume precision and enhance efficiency of vessel design. The method can be widely applied in complex vessel volume computation, scale division line design and manufacture.