The invention discloses an interior large-space wood strip ground installation structure, which comprises a wood base course (1) and a T-shaped steel plate (5). The wood base course (1) is arranged to be vertical to the ground; the end face of the lower part of the wood base course (1) is provided with a slot; the T-shaped steel plate (5) comprises a web plate and a wing plate; the web plate is vertical to the wing plate; the wing plate is provided with wing plate holes; the T-shaped steel plate (5) is fixed to the building ground by ground bolts (7) through the wing plate holes; the web plate is vertical to the ground and extends upwards; the web plate of the T-shaped steel plate (5) is inserted into the slot of the wood base course (1); and the web plate of the T-shaped steel plate (5) and the wood base course (1) are fixedly connected by bolts (3). According to the interior large-space wood strip ground installation structure disclosed by the invention, by optimizing the interior structure, the stability of integral modeling is enhanced, common quality problems brought by a traditional process are solved, and the potential quality hazards of warping and deformation of a traditional interior large-space wood strip ground installation structure are eliminated, and therefore, the technical innovation is promoted.