Multi-item combined down-hole tester

The utility model belongs to an underground testing instrument, more particularly relates to a multiterm combined underground testing instrument which comprises a cable, an integrated chip, a circuit amplifier, an information and signal processing circuit board, a gradiomanometer, a flowmeter, a centralizer, a bushing, a well thermometer, an outer casing, a manometer, a collar location instrument, a weighted lever and a guiding cone. The multiterm combined underground testing instrument is characterized in that the gradiomanometer, the flowmeter, the well thermometer, the manometer and the collar location instrument are sequentially connected in the outer casing; the outer casing is fixed on a preset position in the bushing by the centralizer; the lower end of the outer sleeve is connected with the weighted lever and the guiding cone; the integrated chip, the circuit amplifier and the information and signal processing circuit board are connected to the top inside the outer sleeve in series; and data is transferred to an instrument vehicle on the ground for secondary processing. The multiterm combined underground testing instrument is an integrative testing tool which integrates multiple instruments, has simple structure, can test underground flow, pressure, well temperature, differential pressure density and collar locating parameters, and saves time and labor.