Anion exchange membranes (AEMs) are key core materials in water electrolysis, requiring excellent conductivity and chemical durability. In this study, the suspended dense alkyl ether linkages and 1,2,4,5-tetramethylimidazolium ions with high stability are introduced into the polymer structure (PAES-FTMI-x, x = 0.15–0.30) for AEMs. The obtained AEMs with ion exchange capacity of 1.22–1.74 mmol g−1 exhibit high conductivity and dimensional stability. Their hydroxide ionic conductivity and swelling ratio are in the range of 76.28–113.17 mS cm−1 and 9.7%–17.0 % at 80 °C, respectively. The conductivity retention for the representative sample PAES-FTMI-0.25 achieves 90.6 % after soaked in 2 mol L−1 NaOH and 80 °C for 480 h. The assemble water electrolyzer based on PAES-FTMI-0.25 shows 734.97 mA cm−2 of current density at 2 mol L−1 NaOH and 2.0 V of voltage when the temperature is RT. It also has good durable stability at a current density of 500 mA cm−2 for 480 h with only 0.02 V decrease of voltage. This work would provide an effective strategy for the collaborative design and modification of AEMs for alkaline electrolyzed water.