To understand the works of Beijing Centers for Diseases Control and Prevention(BJCDC) on food hygiene during 30 years of reform and opening-up in China,from the construction of laboratory,setting up and perfecting monitoring system,guarantee the supervision system of government and scientific research in the field of food safety were analysed.Taking the advantage and making full use of our technical superiority,Beijing CDC has made a breakthrough on abilities of surveillance and testing and scientific resea...