One kind may fold the lifesaving ladder, has the flexible belt to constitute two sides struts between, makes connects has at least 2 crossbeams, a flexible belt two sides struts end seal is united as a body. The invention beneficial effect is the use convenient, a flexible belt seal end forms ring-like, the people may tie up the above ring-like flexible belt partial wraps in on the house water pipe or the window, is fast time-saving reduces the people to escape the time, because is the flexible two sides struts, therefore may facilitate folds, is advantageous for the family preserve.