Anchor rod drawing test device

The invention discloses an anchor rod drawing test device, and relates to the technical field of anchor rod drawing test, and the anchor rod drawing test device comprises: a hydraulic cylinder body, the upper and lower sides of the side surface of the hydraulic cylinder body are provided with liquid supply ports; the hydraulic column body is slidably mounted in the hydraulic cylinder body, and the interior of the hydraulic column body is of a hollow structure; the size detection assembly is mounted in the hydraulic cylinder and is used for detecting the size of the anchor rod; the size detection assembly is used for detecting the diameter size of the anchor rod, the size detection assembly is used for driving the control assembly to move to the position matched with the size specification of the anchor rod, the size detection assembly is used for detecting the size of the anchor rod, and the size detection assembly is used for driving the control assembly to move to the position matched with the size specific