Adjustable ankle brace

The utility model relates to the technical field of medical fixing braces, and discloses an adjustable ankle brace which comprises a brace body, a first elastic bandage is fixedly assembled on the front face of the brace body, a second hook-and-loop fastener is fixedly arranged at the top of the first elastic bandage, a second elastic bandage is fixedly assembled on the back face of the brace body, and the second hook-and-loop fastener is fixedly arranged at the top of the second elastic bandage. The outer edge of the brace body is fixedly connected with a round rod, the outer edge of the round rod is slidably sleeved with a sliding pipe, and the outer edge of the top end of the sliding pipe is fixedly provided with a protective tool. Through cooperation of the brace body and the round rod and cooperation of the sliding rod and the protective tool, the height of the protective tool can be adjusted according to the length of the shank of the patient, the situation that the foot sole and the shank of the patien