The invention discloses a clinical vaginal dilation inward entry observation device for the obstetrics and gynecology department, the clinical vaginal dilation inward entry observation device for the obstetrics and gynecology department is mainly formed by combining a base, a placing cylinder, a vaginal dilator, a connecting line and a power line, the placing cylinder is arranged on the base, the vaginal dilator is connected with the placing cylinder through the connecting line, and the power line is connected with the placing cylinder through the connecting line. The power line is arranged on the placing cylinder; the clinical vaginal dilation insertion observation device for the obstetrics and gynecology department is simple in structure and convenient to use, the whole device is transparent through the light guide optical fiber arranged in the upper supporting plate, the front end of a vaginal dilator and the side wall of the supported part can be observed through the opening, the vaginal dilator can be placed in the containing cylinder when taken down temporarily or before being used, and the clinical vaginal dilation insertion observation device for the obstetrics and gynecology department is clean, sanitary and convenient to use. And the vaginal dilator can be heated, so that the temperature is close to the body temperature of a human body, and the discomfort brought to a patient when the patient enters the vaginal dilator is reduced.