The invention relates to an obstetrical four-dimensional color Doppler ultrasound device, and belongs to the technical field of medical equipment. The obstetrical four-dimensional color Doppler ultrasound device comprises a main body, a Doppler generation device, and a color Doppler ultrasound probe device. The front side of the main body is provided with an information display screen. The right side of the information display screen is provided with a starting button and a power button. The right side of the power button is provided with a printer. The printer is provided with a printer port. The inner side of the printer port is connected with a printing paper shield. The printer is internally provided with a roll paper rod support frame. The roll paper rod support frame is connected with a roll paper rod. The left side and the right side of the roll paper rod are provided with roll paper rolling devices. The main body is provided with a wire port. The wire port is internally connected with a power line. The power line is connected with a plug. The device is complete in functions and convenient in use, and when the device is used for color Doppler ultrasound detection for a patient, the device saves time and efforts. The device is scientific and convenient, safe and efficient, and greatly reduces work difficulty of medical personnel.