The invention discloses a replaceable pole tower pile anti-collision structure used in a non-channel water area. Vertical bearing structural parts are arranged on the outer side of a pole tower pile in an equally-spaced mode or in a non-equally-spaced mode and are connected through horizontal connecting beams to form a frame structure. Horizontal supporting parts are arranged for improving the stability and strength of the replaceable pole tower pile anti-collision structure used in the non-channel water area and are respectively connected with the pole tower pile and the vertical bearing structural parts. For preventing the replaceable pole tower pile anti-collision structure used in the non-channel water area from being too sparse and playing no hindering role, encrypted structural parts are arranged in quadrilateral structures formed along the vertical bearing structural parts and the horizontal connecting beams. The members of the replaceable pole tower pile anti-collision structure used in the non-channel water area are steel structural members and are connected through bolts so as to facilitate replacement of damaged members after the structure is damaged due to collision, and meanwhile replacement after the service life of the structure expires is also facilitated.