The present invention relates to a detection device for recognizing the epidural space, more specifically, to a detection device for recognizing the epidural space, comprising an upper case having a predetermined shape and a lower case coupled to the upper case to form a predetermined space part, wherein a connection tube, one end of which communicates with a paracentesis needle part, and which communicates with a pressure sensor for measuring pressure at a predetermined position of the outer peripheral part, is provided at a predetermined position of the space part, and wherein, when the paracentesis needle part reaches the epidural space, the device allows to insert a drug injection catheter into the connection tube with the connection tube and the paracentesis needle part connected to each other, so that the catheter reaches the epidural space.
