The present invention relates to a section-guide graduated ruler for Caesarean section and, more particularly, to a section-guide graduated ruler for Caesarean section wherein, when natural delivery of a baby in the mother's womb through the birth canal is deemed difficult, and when a small incision line is accordingly drawn across the mother's abdomen and womb to deliver the baby through a surgical procedure (Caesarean section surgery), the graduated ruler guides a Pfannenstiel incision so as to have an up/down/left/right symmetry such that the accurate incision location is guided not only for an experienced surgeon but also for a beginner, thereby forming a clean surgical scar. The present invention provides a section-guide graduated ruler for Caesarean section comprising: a strip-shaped vertical tape having pointed upper and lower ends and having a length corresponding to the distance from the mother's navel to clitoris, and a horizontal tape coupled so as to intersect with the vertical tape, the horizontal tape having a length corresponding to the length of both ilia, thereby guiding a Pfannenstiel incision during Caesarean section.
