A comprehensive reef protecting group

The invention provides a comprehensive protection reef base comprising a floating base and a spherical sinking base. The outer portion of the floating base is provided with a floating ball; the floating base is internally provided with an upper cavity and a lower cavity which are isolated from each other; the upper cavity of the floating base is internally provided with a winding reel used for winding ropes; a plurality of extension bases arranged in parallel in the vertical direction are arranged under the floating base; a disengagement mechanism enabling the extension bases to be disengaged from the floating base on by one is arranged between the floating base and the extension bases; each of the sinking base and the extension bases is provided with a plurality of alga cultivation bricks; the sinking base is connected with the floating base through a rope; the rope penetrates through the middle portion of each extension base; the sinking base comprises an upper plate and a lower plate, and a plurality of support rods are fixed between the upper plate and the lower plate; the bottom of the inside of each extension base is provided with an extension frame capable of rotating upward. The comprehensive protection reef base is reasonable in structure, is multifunctional, and is capable of providing food for fishes and achieving a good protection effect.