Automobile pedal switch support clearance measuring tool and measuring method thereof

The invention discloses an automobile pedal switch support clearance measuring tool and a measuring method thereof. The measuring tool comprises a measuring tool body and a measuring rod, wherein the measuring rod is arranged in a through hole in a sliding mode, the through hole is formed in the measuring tool body, the measuring tool body is divided into a handle portion and a measuring portion by a step, the size of the handle portion is larger than that of an installation hole formed in a switch installation support, and the size of the measuring portion is smaller than that of the installation hole formed in the switch installation support. The measuring tool can enable a user to quickly measure the clearance between the switch installation support and a switch trigger support in a real-time automobile state at narrow switch position. The measuring tool is compact and reasonable in structure, convenient to operate and accurate in measuring result.