A method and apparatus for synthesizing and expressing multiple effects and textures in a 3-dimensional graph image. The method includes: defining nodes in VRML (Virtual Reality Modeling Language), the nodes being used to express multiple effects; inputting VRML files corresponding to the defined nodes, the VRML files having information on the 3-dimensional image and the multiple effects to be expressed in the 3-dimensional image; generating the 3-dimensional image by using the input VRML files; and expressing the multiple effects in the generated 3-dimensional image by using the information on the multiple effects in the input VRML files. Accordingly, the VRML nodes and fields are defined to synthesize multiple effects and multiple textures in the 3-dimensional image, so that it is possible to effectively apply the multiple effects and multiple texture effects in the 3-dimensional image in cooperation with a conventional 3-dimensional image expression method and apparatus. Accordingly, it is possible to apply the multiple effects or the multiple texture effects in the 3-dimensional image by a user simply designating the multiple effects or the multiple texture effects.