A combined cap comprises a needle-type spool (1), a connecting cap (2), and an outer cap (3). The needle-type spool (1) is provided with a spool upper cap (11) and a spool lower cap (12) vertically linked. A spool rubber plug (13) is disposed between the spool upper cap (11) and the spool lower cap (12). The spool lower cap (12) is provided with a needle-shaped head (121), a liquid flowing channel (1211) is arranged in the needle-shaped head (121), and multiple liquid flowing holes (1212) communicating with the liquid flowing channel (1211) are formed in the end portion of the needle-shaped head (121). The spool rubber plug (13) is provided with a cavity (131), and the cavity (131) communicates with the liquid flowing channel (1211) in an opposite manner. A sealing film (21) is disposed in the connecting cap (2), the spool lower cap (12) is sealed in the connecting cap (2), and the needle-shaped head (121) is disposed opposite to the sealing film (21). The outer cap (3) is sleeved outside the spool upper cap (11) and is sealed on the connecting cap (2). By means of the combined cap, needleless dosing and/or needleless drug delivery can be implemented； the combined cap has a simple structure and is convenient to use.L'invention concerne un capuchon combiné comprenant un corps de type aiguille (1), un capuchon de liaison (2) et un capuchon externe (3). Le corps de type aiguille (1) est pourvu d'un capuchon de corps supérieur (11) et d'un capuchon de corps inférieur (12) reliés verticalement. Un bouchon de corps en caoutchouc (13) est disposé entre le capuchon de corps supérieur (11) et le capuchon de corps inférieur (12). Le capuchon de corps inférieur (12) est pourvu d'une tête en forme d'aiguille (121), un canal d'écoulement de liquide (1211) est disposé dans la tête en forme d'aiguille (121) et de multiples trous d'écoulement de liquide (1212) en communication avec le canal d'écoulement de liquide (1211) sont formés dans la partie d'extrémité de la tête en forme d'
