With the development of birthing-process medical science, and insurance requirement of prepotency, the ultrasound
technique is widely used in the application of obstetrics realm, especially on the monitoring of embryo's growth. In the
recent decade, the introduction of high resolution three-dimensional ultrasonic and color power Doppler scanner
provides a much more direct, sensitive, forerunner method for the monitoring of embryo and gravida's prediction. A
novel method that depends on examining images of vasculature of placenta to determine the growth of embryo is
introduced in this paper. First, get a set of placenta vascularity images of the pregnant woman, taken by Color Doppler
Ultrasonic Scanner, then mark some points in these images, where we get a section image, thus we can observe the
internal blood vessel distribution at those points. This method provides an efficient tool for doctors.