The invention relates to a controllable reactor with direct coupling of double-column magnetic flux. The controllable reactor includes an iron core and an edge yoke. The iron core includes a single-phase iron core, and/or a three-phase iron core composed of the three single-phase iron cores; the single-phase iron core includes iron core columns disposed in the edge yoke, and a winding located in the edge yoke and disposed in the radial outer side of the iron core columns; the edge yoke includes a rectangular edge yoke, and/or a combined edge yoke formed by an end shared by three rectangular edge yokes; and the winding includes a control winding disposed on the radial outer side of each of the iron core columns, and a line side winding radially disposed on outer sides of the two control windings along the iron core. The controllable reactor of the invention can achieve the direct coupling of the double-column excitation magnetic flux; loop equivalent inductance and time constant are effectively reduced; insulation space requirements between the double windings are reduced; the size and weight of a coil and a fuel tank are reduced; and the response speed is greatly improved at the same time.