Abstract: The arsenic pollution in MinQuan County has macro and micro reasons.The macro reasons include government paying little attention to environment, the imperfect market and law mechanism, the absence of environment and social re-sponsibility;the micro reasons include the backward productive forces, the distortion of development concept and the criminal protection for human centralism.So on the one hand the government should take more responsibilities to protect environment, and improve market and law mechanism;on the other hand, criminal law should protect environment earlier, and add the types of dangerous crime to serious environmental pollution accident crime.