The present invention discloses an optical coherence tomography device. The device comprises a base member； an end of the base member is formed as a detection end, and another end is formed as an installation end； the detection end is pivotally connected with an optical imaging catheter； the optical imaging catheter is configured with an imaging end and a connecting end, the connecting end being detachably connected with the detection end； the connecting end is configured with a first connection portion； a movable member, the movable member being capable of moving towards or away from the detection end； the movable member is configured with an optical fiber slip ring, a hollow shaft and a first driving mechanism, an end portion of the optical fiber slip ring being fixedly connected to the movable member； an end portion of the optical fiber slip ring is disposed within the hollow shaft； the hollow shaft is pivotally connected onto the movable member； an end portion of the hollow shaft is configured with a second connection portion, the second connection portion being configured to connect with the first connection portion when the movable member moves towards the detection end, such that the optical imaging catheter engages with the hollow shaft to allow the optical imaging catheter to be connected to the light path of the optical fiber slip ring； and a second driving mechanism. The present invention can achieve automatic connection of the optical imaging catheter, reducing manual operation.La présente invention concerne un dispositif de tomographie par cohérence optique. Le dispositif comprend un élément de base ； une extrémité de l'élément de base est formée en tant qu'extrémité de détection, et une autre extrémité est formée en tant qu'extrémité d'installation ； l'extrémité de détection est reliée de manière pivotante à un cathéter d'imagerie optique ； le cathéter d'imagerie optique est configuré avec une extrémité d'imagerie et une extrémité de liaison, l'extrémi
