In order to construct a large number of diverse and innovative fractal graphics, an arbitrary nonlinear transformation of V(x,y) is introduced into the classical iterated function systems to change the construction form of nonlinear iterated function systems (NIFS). The deterministic algorithm and random iteration algorithm are used to draw the fractal graphics. The summarization of relevant transformation rules are obtained according to the generation of NIFS attractors. The experimental results show that the combination of nonlinear transformation and affine transformation enriches the transformation types of iterated function systems, and a simple and effective approach is provided for the drawing of NIFS fractal graphics. And, the novel structural fractal mountains and the fractal graphics with D n+1 、Z n+1 symmetrical