The invention relates to an automatic drug delivery device (10), in particular automatic drug delivery device, for dispensing a fluid product, in particular a fluid medicament, including: a longitudinal housing (104) extending along a longitudinal axis and having a proximal end close to the dispensing site, a distal end opposite to the proximal end and a hollow interior； a removable cap (50) mountable to the proximal end of the housing (104)； a syringe assembly (200) arranged a mounting position inside the housing (104) and having a hollow syringe body (204) and an injection needle (206) coupled to the hollow syringe body (204) including the fluid product； a drive mechanism (300) which can be triggered by a trigger element in order to initiate the dispensing of the fluid product； wherein the loaded drive mechanism is operatively coupled with a safety shield (102) movable within the longitudinal housing (104), wherein the safety shield (102) is biased into a proximal position in which it protrudes out of the proximal end of the longitudinal housing (104) in order to cover a needle tip (348) of the injection needle (206), and wherein the safety shield (104) is movable into a distal position in which the injection needle (206) is exposed for injection； the device further including a feedback mechanism providing a visual feedback to the user indicating an actual state of operation, wherein the feedback mechanism includes a visual indicator which appears in a transparent window on the distal end of the housing.L'invention concerne un dispositif d'administration de médicament automatique (10), en particulier un dispositif d'administration de médicament automatique, pour distribuer un produit fluide, en particulier un médicament fluide, comprenant : un boîtier longitudinal (104) s'étendant le long d'un axe longitudinal et ayant une extrémité proximale proche du site de distribution, une extrémité distale opposée à l'extrémité proximale et un intérieur creux； un capuchon am
