The invention relates to a city high-density wind environment simulation wind tunnel system based on an intelligent interactive platform. The tunnel system is formed by a stabilization section, a contraction section, an experiment section, an expansion section and a fan section, which are connected in sequence. The stabilization section is formed by a first cavity wall and a rectification device embedded in the first cavity wall; the contraction section is formed by a second cavity wall; the experiment section is formed by a third cavity wall, a disk device, an opening observation door device, a simulation measurement device and a material box, wherein the disk device is arranged to the inner bottom portion of the third cavity wall; the opening observation door device is arranged to the side wall of the third cavity wall; the material box and the simulation measurement device are arranged in the third cavity wall; the expansion section is formed by a fourth cavity wall; and the fan section is formed by a fifth cavity wall, a fan device and a fan section rectifying device. Under the precondition of guaranteeing required precision of the experiment, occupied volume of the wind tunnel experiment is greatly reduced; the wind tunnel system is clear in structure and small in size, and can be disassembled, transported and assembled according to functions; and by means of the intelligent platform, the wind tunnel system realizes seamless butt joint with modeling modules frequently-used in building design, and the measurement data is directly applied to the modeling process through the wind tunnel system.