Cord controller of window covering

A cord controller of a window covering, which is mounted on a top rail of the window covering for at least a cord to pass through, comprising:

• a base having a chamber therein, and an inlet and an outlet on opposite sides of the chamber;
• a cord controlling device, which is received in the chamber of the base, having a gap between the inlet and the outlet for the cord to pass through, where said cord controlling device further includes a rotatable controlling wheel pivoted on the base and a guiding member mounted on the base, and the gap is between the controlling wheel and the guiding member;
• a cord regulating device, which is received in the chamber of the base and adjacent to the outlet, having a bar that is bent to form a horizontal cord pressing bar, two vertical lateral bars on opposite ends of said cord pressing bar to engage said base, and inwardly facing hook on tails of the lateral bars, wherein a passageway is formed between the cord pressing bar and the base for the cord to pass through;
• wherein a height of the passageway is less than a diameter of two cords in order to prevent said cords from twisting;
• and
• wherein the base comprises a plurality of posts adjacent to the inlet.