Measurement tool for correcting radar liquid level meter of cargo space of large oil tanker

The invention discloses a measurement tool for correcting a radar liquid level meter of a cargo space of a large oil tanker. The measurement tool comprises a hand crank, a fixing bracket, a measuring tape and a reflecting plate, wherein the fixing bracket is horizontally placed on an upper deck; the hand crank is mounted on a middle connecting rod of the fixing bracket; two ends of the measuring tape are connected with the hand crank and the reflecting plate respectively; the reflecting plate keeps horizontal during measurement. The stabilization effect is achieved by using the fixing bracket, the hand crank is fixed on the bracket, and the measuring tape and the hand crank are connected with the reflecting plate, so that the measurement accuracy of the radar liquid level meter can be corrected more stably, effectively and accurately, and the measurement error of the radar liquid level meter is reduced.