The utility model discloses a novel true triaxial rock seepage holder. The novel true triaxial rock seepage holder is a cylindrical closed combined body consisting of axial compression plungers, a holder cylinder, a rock core and a pressure hose, wherein two axial compression plungers are symmetrically arranged on two end faces of the rock core, and fluid channels are respectively formed along the axes positions and off-axis positions of the plungers; a hole is drilled in the axis position of the rock core to penetrate through the bottom surfaces at two ends, the pressure hose is inserted into the channels of the rock core, and two ends of the hose are connected with axis channels of the plungers; the rock core and the two axial compression plungers are wrapped with a sealing cover; three metering pumps are respectively communicated with the axial compression plungers to apply the maximum main stress to two ends of the rock core, are communicated with an external annular pressure cavity to apply middle main stress to the side face of the rock core and are communicated with an internal pressure hose to apply the minimum main stress to the inner hole of the rock core; another metering pump is arranged to be connected with the off-axis channels of the plungers to inject liquid into the rock core. The test requirement on pore gas/liquid seepage of the rock core in a true triaxial stress state under multiple boundary conditions can be met, and the seepage holder has the characteristics of simple structure, convenient operation and simplicity in rock core processing implementation.