The invention discloses an ecological fish way with staggered spacer block structures. The ecological fish way comprises fish way side walls, a bottom plate, a plurality of hollow spacer block structures and the like, each spacer block structure comprises a straight section partition plate and an arc section partition plate, flow regulating water passing joints are arranged on the straight section partition plates and the arc section partition plates, the spacer block structures are arranged on the inner fish way side walls, the straight section partition plates are obliquely crossed with the inner side walls, an extended section is formed between the arc section partition plates of two opposite spacer block structures, a certain distance is reserved between the adjacent spacer block structures, and the fish way is divided into a plurality of cell compartments which are mutually communicated through the extended sections among the arc section partition plates. First cavities are formed in the fish way side walls, and driving plates are arranged inside the first cavities. Water flow in the ecological fish way naturally wriggles, the shortcoming of high water flow speed at a vertical slot of a traditional vertical slot fish way is effectively avoided, the influence of water conservancy and hydropower projects on fish migration can be reduced, and ecological protection of rivers is facilitated.