Recently China's "Rural Labor Shortage" was one kind of labor bubble. Analyzing the dynamic development, the countryside latent surplus-labor quantity is considerable. Using model, this paper calculated the arrival time of "Lewis Turning Point", and concluded it needs to postpone more than 20 year. At present, the labor force is still China's comparative advantage. The government should formulate the corresponding policies under this situation: Focus on the different time's labor force condition, the government should adopt dynamic empl...