A tent surface support device includes a support skeleton. The support skeleton is provided with a top rod that includes a middle top rod arranged in the middle of the top rod. The middle top rod is divided into a first portion and a second portion which are bendable toward each other. A connecting member is hinged between the first portion and the second portion, and a locking assembly configured to lock the two portions in an unbent state is provided between the first portion and the second portion. When tent is first set-up, the support skeleton is nested into the tent surface, and the first portion and the second portion of the middle top rod are bent. Then, the first and second portions of the middle top rod may be locked together to allow erection of the tent.