The present invention provides a curvature adjustment structure of a curved liquid crystal display device, which includes: a backplane and at least one bracing assembly fixedly mounted to the backplane. An updown direction height of a front of the tub is greater than a leftright direction width of the tub. A section of the shank in which the distal bend region is situated may be rotated about the longitudinal axis relative to a section of the shank in which the proximal bend region is situated.