The utility model relates to a movable assembled cable rack. Fixed flat iron pieces are embedded in an upper floor plate and a lower floor plate of a building respectively. The movable assembled cable rack is characterized in that two H-shaped steel grooves with the openings being opposite are fixed on the fixed flat iron pieces respectively through fixing bolts, an H-shaped steel support vertical column is inserted in the two H-shaped steel grooves, the upper end and the lower end of the support column are fixedly connected with the H-shaped steel grooves through vertical column bolts, the reverse side of the support vertical column is provided with two rows of cable supporting arm mounting holes, the number of the cable supporting arm mounting holes in each row is two, angle steel metal supporting arm are horizontally fixed on the support column through supporting arm bolts, two supporting arm lateral support mounting holes are reserved below the supporting arm mounting holes, and supporting arm lateral supports are fixedly mounted between the support column and the supporting arm laterally by lateral support bolts through support mounting holes. The movable assembled cable rack improves the construction flexibility in adjustment, and can set the cable supporting arms according to actual requirements.