PROBLEM TO BE SOLVED: To progress construction while correcting a wall shape, when constructing a wall of a cylindrical container structure by using a slip form construction method.SOLUTION: A slip form device 10 for use in construction of a wall of a cylindrical container structure 1 includes: a pair of inside and outside forms 11 and 12; a skeleton section 20 that is annularly provided along the wall to support the pair of forms 11 and 12; a plurality of wire ropes 13 that are radially stretched on the inner peripheral side of the skeleton section 20 to retain a shape of the skeleton section 20 by tension; and a tension adjustment mechanism 50 that adjusts the tension of the wire rope 13.