We used the combination of molecular dynamics and Monte Carlo method to investigate protein folding problems. The environments of proteins are very big, and often very time-consuming. If simulations are based on traditional methods of molecular simulations, it will cost very long time to accomplish the simulation. We use a special designed method, in which the molecular dynamics is used for determining the soft part of protein, and use Monte Carlo method to move and rotate the bonds of proteins. By removing a lot impossible movements in traditional Monte Carlo method, we shorten simulation time and simulate protein folding process effectively. In this work, we used GBSA solvent model, AMBER force field, and semi-local movements to accelerate the simulations. We obtained good result by this simulation method of a small peptide 1L2Y.