Disclosed is a mercury sphygmomanometer, comprising a sphygmomanometer body (1). An upper cover (10) and a lower cover (11) in the sphygmomanometer body (1) are hinged to each other. The upper cover (10) is fixed by means of a fastener after covering the lower cover (11). A side surface of the lower cover (11) is provided with an outlet (110). A receiving box (2) for having a long rubber pipe, an arm sleeve, a stethoscope, and a latex ball of the sphygmomanometer body (1) placed therein and which can be pulled out through the outlet (110) is slidably connected in the lower cover (11). The receiving box (2) is completely inserted into the lower cover (11) and is then locked by a fastener. The side surface of the lower cover (11) is further provided with an arm rest portion (3) for facilitating the placing of an arm of a person undergoing blood pressure measurement. The mercury sphygmomanometer is easy for medical staff to store, can save time for medical staff and is convenient. In addition, the arm rest portion (3) can facilitate the placing of an arm of a person undergoing blood pressure measurement, such that time wasting caused by repeatedly adjusting the position of the arm of the person undergoing blood pressure measurement due to improper placement of the arm is avoided.L'invention concerne un sphygmomanomètre au mercure, comprenant un corps de sphygmomanomètre (1). Un couvercle supérieur (10) et un couvercle inférieur (11) dans le corps de sphygmomanomètre (1) sont articulés entre eux. Le couvercle supérieur (10) est fixé au moyen d'un élément de fixation après recouvrement du couvercle inférieur (11). Une surface latérale du couvercle inférieur (11) est pourvue d'une sortie (110). Un boîtier de réception (2) ayant un long tuyau en caoutchouc, un manchon de bras, un stéthoscope et une bille en latex du corps de sphygmomanomètre (1) placés à l'intérieur de celui-ci et qui peut être tiré à travers la sortie (110) est connecté de façon coulissante dans le couver
