The invention discloses a field calibration test line self-suction type wire tidying clamp which comprises a strong magnetic base and a test line fixing support arranged on the base. The test line fixing support is provided with a pressing type test line fixing mechanism. According to the field calibration test line self-suction type wire tidying clamp, the strong magnetic base and the test line fixing support which is arranged on the base and provided with the pressing type test line fixing mechanism are arranged, the strong magnetic base is attracted to a power distribution cabinet or an installation seat and other metal, test lines are wound on the test line fixing support and fixed by the pressing type test line fixing mechanism, and therefore the test lines are effectively, quickly, simply, safely and reliably tidied and fixed.