Coupled eco-composite wall is one of the most commonly used lateral-load resisting member in eco-composite wall structure. The test of a coupled eco-composite wall under low-frequency cyclic loading is carried out to study the seismic behavior of the coupled eco-composite wall. At the same time, the main influencing factors of shear capacity for the wall are analyzed by numerical simulation. Experimental results and numerical analysis show that: the coupled eco-composite wall has better seismic performance in contrast with the standard wall, and such factors as shear-span ratio, ribbed steel bar, block strength, section height and reinforced area of end column and concrete strength of end frame column are the main influencing factors of shear capacity 。