Combined waistband

The utility model belongs to the technical field of clothes, and discloses a combined waistband which comprises a first waistband and a second waistband, the first waistband comprises a first waistband body and a lock catch, the lock catch is arranged at one end of the first waistband body, and the other end of the first waistband body can penetrate through the lock catch. The lock catch can be selectively locked to different parts of the first waistband body, the second waistband comprises a second waistband body, the second waistband body comprises a first waist strip and a second waist strip which are oppositely arranged, a plurality of supporting strips are arranged on the second waistband body at intervals in the length direction of the second waistband body, and the supporting strips are supported between the first waist strip and the second waist strip; the first waistband body penetrates through the multiple supporting strips, every two adjacent supporting strips are located on the two sides of the fi