The present utility model discloses a cock keeping pen having improved functionality, design, portability, durability and safety features. The pen serves as cock keeping and training pen all in one. The keeping pen comprises a left pen and a right pen hinged to a center panel of sturdy structure and wall securely inserted in the structure, the center panel serves as the main structure which holds all the walls, the floorings and the top covers through a hinge, the main purpose of hinges is for foldabilty and portability； The foldable front and back wall of the left pen and right pen is made up of left wing and right wing with diamond design-hole for ventilation, each wing with hinges on both edges to connect to each other, center panel and fixed left and right walls that complete the box-like casing of walls of the left pen and the right pen； wherein a flooring of square shape is securely fitted on the lower portion of the pen for keeping and training of the cock, when the pen is folded the flooring is keep toward the center structure. The method of construction and design employed and the material used are carefully considered to guaranty durability of the pen and safety of the cock.
