The invention discloses an electronic bronchoscope system with a color Doppler ultrasonic scanning function. The system comprises an electronic bronchoscope, a camera host, a breathing machine, an endoscopic monitor and a cold light source host, wherein the camera host, the breathing machine, the endoscopic monitor and the cold light source host are connected with the electronic bronchoscope; theelectronic bronchoscope is provided with a color Doppler ultrasound system; and the color Doppler ultrasound system comprises a color Doppler ultrasonic probe, a color Doppler ultrasound system host,an operating keyboard or handheld operating device of the color Doppler ultrasound system host, and a color Doppler ultrasound system monitor. The electronic bronchoscope system is characterized in that the electronic bronchoscope gets into a bronchus of a patient from the mouth and trachea of the patient so as to clearly observe the inside of the bronchus by an electronic ccd optical system; an instrumental channel of the electronic bronchoscope can simultaneously get into the operating end part of the color Doppler ultrasonic probe so as to carry out scanning on the wall of the bronchus andtissues around the bronchus, thereby obtaining dynamic diagrams of blood vessels of the wall of the bronchus and the tissues around the bronchus as well as blood flow speeds and blood flow rates of the blood vessels; and through analyzing and comparing the obtained data such as the blood flow speeds and blood flow rates of the blood vessels, the pathological changes of the bronchus can be diagnosed. The electronic bronchoscope system has the advantages of enriching the diagnostic methods and improving the diagnostic accuracy.