The insertion tube configuration-displaying device (100) has an insertion tube (210) that changes configuration, and a position-acquiring unit (110) that acquires the acceleration and positional information relating to the position of multiple measurement points of the insertion tube (210). The insertion tube configuration-displaying device (100) comprises a configuration-calculating unit (136), a movement-determining unit (133), a movement period-specifying unit (134), a position-estimating unit (143), and an image-generating unit (146). The configuration-calculating unit (136) calculates the position of each measurement point and relative positions with respect to other measurement points on the basis of the positional information. The movement period-specifying unit (134) specifies the movement period in which the measurement points are moving based on the determination results of the movement-determining unit (133). The position-estimating unit (143) estimates the position of each measurement point in the movement period. The movement vector-calculating unit (144) calculates the movement vectors of the measurement points in the movement period. The image-generating unit (146) generates a display image that represents the relative positions and movement vectors.La présente invention concerne un dispositif daffichage de configuration de tube dinsertion (100) qui comprend un tube dinsertion (210) qui change de configuration et une unité dacquisition de position (110) qui obtient les informations de position et daccélération concernant la position de multiples points de mesure du tube dinsertion (210). Le dispositif daffichage de configuration de tube dinsertion (100) comprend une unité de calcul de configuration (136), une unité de détermination de mouvement (133), une unité de spécification de période de mouvement (134), une unité destimation de position (143) et une unité de génération dimage (146). Lunité de calcul de configuration (136) calcule la position de c