Provided is an image joining apparatus that creates a joined image by joining multiple consecutive still images on a time axis, the image joining apparatus including: a past image confirmation unit that confirms whether there is a past still image located before the previous still image in terms of time in at least a part of a portion to be joined to the target still image; an angle calculation unit that calculates an angle formed between a motion vector associated with the target still image and a motion vector associated with the past still image, when the past image confirmation unit has confirmed that the past still image is present; and a stop processing unit that stops joining of the target still image when the angle calculated by the angle calculation unit is equal to or greater than a predetermined angle.