The invention discloses a sectionalized test system for a floor mining-induced damage range. The sectionalized test system comprises a detection system, a blocking system and a supply determining system, wherein the detection system is mounted in a drill hole of a fractured zone; the blocking system is used for blocking the drill hole; the detection system comprises a test probe formed by sequentially connecting a plurality of detection units, the adjacent detection units are detachably connected through a slot joint, fixed type pressure adjusting valves are arranged in the slot joints of the detection units at the front part and in the middle, and a detachable type pressure adjusting valve is arranged in the slot joint of the detection unit at the tail part. According to the sectionalized test system, the plurality of detection units are sequentially connected to form the test probe, pressure values are adjusted by the fixed type pressure adjusting valves and the detachable type pressure adjusting valve, the pressure values of all detection units keep equal, further, the drill hole can be measured synchronously, the workload is reduced by times, and the measurement precision is improved.