A paper tray structure and electrocardiograph, the paper tray structure comprising a paper tray (5) and a door assembly (11) an operating space is provided above the paper tray (5) the door assembly (11) comprises a door (1) located in front of the paper tray (5) the door assembly (11) is movably connected to the paper tray (5) and can reciprocate linearly between a first relative position and a second relative position with respect to the paper tray (5) the paper tray (5) has first and second limiting faces (51, 52) respectively corresponding to the first and second relative positions at the first relative position, the door assembly (11) engages with the first limiting face (51) and separates from the second limiting face (52), and the door assembly (11) is kept away from the operating space and at the second relative position, the door assembly (11) separates from the first limiting face (51) and engages with the second limiting face (52), and the door assembly (11) blocks the operating space. The present invention employs a drawer-type paper tray structure, and the door assembly (11) can move linearly relative to the paper tray (5), thus effectively reducing the footprint, and facilitating paper loading by a user.Linvention porte sur une structure de plateau de papier et sur un électrocardiographe, laquelle structure de plateau de papier comprend un plateau de papier (5) et un ensemble de porte (11) un espace fonctionnel étant situé au-dessus du plateau de papier (5) lensemble de porte (11) comprenant une porte (1) située à lavant du plateau de papier (5) lensemble de porte (11) étant relié de façon mobile au plateau de papier (5) et pouvant effectuer un va-et-vient linéaire entre une première position relative et une seconde position relative par rapport au plateau de papier (5) le plateau de papier (5) ayant des première et seconde faces de limitation (51, 52) correspondant respectivement aux première et seconde positions relatives dans la première positi
