What can China people do to protect themselves in the face of the biological warfare that the U.S. government has no moral integrity, no lower limit and no bottom line? In fact, as early as the period of resisting U.S. aggression and aiding Korea, China had already handed over a qualified answer sheet in the face of the biological war of the United States against Northeast China. Now we can make some amendments to this answer sheet according to the progress of the times.