FDA has great influence in the United States and even the world, and is known as "the patron saint of American health". Drug dealers and food vendors all over the world love and fear it, and its reputation and professional standards have won the trust of many experts and the general public. While providing good protection, its strict testing and evaluation has also caused many drug dealers and food dealers to criticize it for hindering invention and innovation, which is the biggest obstacle to prevent people from obtaining specific drugs, and lobbying Congress to reduce the authority of FDA, but this has not affected the sacred protection and performance of its mission and responsibility. Today, FDA has become a golden shield in the hearts of global food and drug consumers.