A blood pressure cuff assembly for a dynamic blood pressure monitor comprises a hollow cuff (14) and an elastic lining (15) provided on the reverse side of the cuff (14), wherein, an airbag (2) is provided in the cuff (14), a first connection part (8) and a second connection part (9) are provided on the cuff (14), a third connection part (13) and a fourth connection part (12) are correspondingly provided on the lining (15), the first connection part (8) is connected with the third connection part (13), the second connection part (9) is connected with the fourth connection part (12), the part of the lining (15) between the third connection part (13) and the fourth connection part (12) is straight, and the part of the cuff (14) between the first connection part (8) and the second connection part (9) is arched. The effect of tight inside and loose outside is achieved by the combination of the elastic lining (15) and the cuff (14). When worn on an upper arm, the elastic lining (15) has an elastic deformation and consequently tightens around the upper arm so as to realize certain slip resistance, and the cuff (14) will not slip down even tied a bit loosely when located on the upper arm. Therefore, the feeling of constraint from the cuff (14) is reduced significantly, the comfort is improved and the cuff is suitable for long wear.Linvention concerne un ensemble brassard de pression sanguine pour un dispositif de surveillance de pression sanguine dynamique, qui comprend un brassard creux (14) et un revêtement élastique (15) situé sur le côté revers du brassard (14), un coussin dair (2) étant situé dans le brassard (14), une première partie de liaison (8) et une deuxième partie de liaison (9) étant situées sur le brassard (14), une troisième partie de liaison (13) et une quatrième partie de liaison (12) étant situées de façon correspondante sur le revêtement (15), la première partie de liaison (8) étant reliée à la troisième partie de liaison (13), la deuxième partie de lia