The present invention relates to a DIY lamp connecting structure applicable for all kinds of lamp, comprising a hanging frame on a switch box, and a connector at the top of the lamp; wherein said hanging frame has a pivotal base extended from the central hole on the side of the hanging frame, and the bottom of the pivotal base has a ratchet blocking wheel; a latch member is disposed at the top by a spring and the aslant plane of the lower half section of the latch member is aligned with the plane of the ratchet blocking wheel, and the plane of the utmost bottom presses against the serrations of the blocking wheel, such that the blocking wheel can only rotate in the same direction, and unable to rotate in the reverse direction. A ratchet serrated edge disposed along the side of the connector is engaged, so that the connector can be latched into the blocking wheel of the hanging frame step by step, and assure the secure coupling within the hanging frame. Such structure not only reduces the volume of the lamp for transportation and storage, but also provides a very convenient way for the users to assemble the lamp on their own by inserting the connector into the hanging frame.