A connecting structure, as well as a loudspeaker and an electronic apparatus having the connecting structure are disclosed. The connecting structure includes a snap ring and a connecting post. The snap ring is provided with a notch having a width greater than an inner diameter of the snap ring and an inner wall of the snap ring is provided with a supporting arm. The connecting post includes a post body and a post head located at one end of the post body, an outer diameter of the post head is greater than an outer diameter of the post body, and the post body is provided with a snap-fitting slot. The post body can pass through the notch of the snap ring to be snap-fitted in the snap ring, and the supporting arm can be snap-fitted in the snap-fitting slot of the connecting post.