The invention discloses a field test system for transfusion, stress and deformation coupling characteristics of a jointed rock mass. A given crack which passes through a drill hole is subjected to a permeability test under different pressure conditions by virtue of the drill hole, hydraulic power pressure, penetration flow and crack stress deformation can be measured, acquired and tested at the same time, and data can be stored by a high pressure hydraulic test system. A hole is drilled at a rock mass at a crack, a packing capsule is filled in the hole up and down, a test section is remained at the crack, a high pressure water pump pipe is provided with a pressure sensor which is connected into the packing capsule, and the packing capsule is pressurized, thus the packing capsule and hole wall are tightly combined, the high pressure water pump pipe is provided with a flow sensor and a pressure sensor, and a high pressure water pump carries out a flow high pressure hydraulic test on the test section in the drill hole by virtue of a drill pipe; an observation hole is drilled on the rock mass, a multi-point displacement anchor head and a strain gauge are arranged in the hole, the anchor head is connected with a displacement sensor, and the displacement sensor, the flow sensor and the pressure sensor are respectively connected into a data acquisition storage instrument and are respectively controlled by a computer.