The invention provides a modeling method based on convolutional curved surface approximation in the VR environment. The method comprises steps that one type of point, line and plane frameworks is selected, sizes and thickness are set, the data is inputted to the framework through a button of a VR handle, a convolutional curved surface is utilized to carry out approximation of the point, line and plane polygon frameworks having the radius information, the acquired input framework is transferred to a GPU through a system to carry out parallel field calculation and extract contour surfaces. The method is advantaged in that problems of complex operation caused by modeling generally based on two-dimensional planes in a 3D modeling tool in the prior art and mismatching between modeling input sizes and output model sizes in the VR are solved, a convolutional curved surface approximation method based on the frameworks is utilized, for approximation of the different-diameter frameworks inputted by users in an interaction system, closed solution schemes are derived respectively for line segment framework tail ends and polygon framework edges. Moreover, for various complex shapes, different humanized coating schemes are provided for simplified input.