In order to numerically simulate bistatic scattering from fractal rough surface at low grazing angle incidence, a hybrid approach of the forward-backward method (FBM) with spectral-accelerated algorithm (SAA) is developed to solve the magnetic field integral equation. Numerical bistatic scattering from one-dimensional perfect conducting fractal rough surface realized by the Monte Carlo method with and without the presence of a regular object is accomplished, Linear relationship between the envelope slope of bistatic scattering pattern and the fractal dimension is discussed.