A method and a device for adjusting the state of a device are disclosed in the embodiment of the present application. The method comprises: a method and an apparatus for acquiring a first image and asecond image captured correspondingly by two image capture apparatuses, analyzing the first image and the second image, according to the position coordinates of the feature points of the detected object in the first image and the second image, and a relative positional relationship between the two image acquisition devices. The position coordinates of the feature points of the detected object in the spatial coordinate system are obtained so as to obtain the position coordinates of the center point of the detected object in the spatial coordinate system, thereby adjusting the position of the bed panel so that the position coordinates of the center point of the detected object in the spatial coordinate system are the same as the position coordinates of the isocenter point. Because there areno X-rays in the adjustment process, the influence of long-time X-ray radiation on the health of the detected object is avoided, and the whole adjustment process only needs to move the bed panel pertinently once, which has high accuracy and efficiency.