The invention discloses a clinical prenatal diagnosis and examination device for the gynaecology and obstetrics. The clinical prenatal diagnosis and examination device comprises a hip support plate, wherein a back support plate and a leg support plate are mounted at two ends of the hip support plate in a matched manner through angle adjusting devices, a seat cushion is fixedly arranged on the upper surface of the hip support plate, a pillow cushion is fixedly arranged on the surface of the back support plate, an electric telescopic rod II is fixedly arranged on the side edge of the rear end ofthe hip support plate, a mounting table is arranged at the upper end of the electric telescopic rod II, and a motor I is fixedly arranged on the mounting table. For the clinical prenatal diagnosis and examination device for the gynaecology and obstetrics, the angles of the back support plate and the leg support plate can be adjusted, so that a pregnant woman obtains good lying experience, meanwhile, the inflated seat cushion and pillow cushion are additionally arranged, so that flexible limiting for the position of the pregnant woman can be realized, moreover, due to the adoption of the manner that a plurality of motors and a plurality of electric telescopic rods work cooperatively, a detection head can obtain various detection angles, and thus the detection effect is guaranteed.