[Hmim][Gly] accelerated the absorption of CO2 in AMP aqueous solution.
The [Hmim][Gly]-AMP solution could be regenerated efficiently after three cycles.
CO2 reacted with [Hmim][Gly]-AMP solution conformed to zwitterionic mechanism.
[Hmim][Gly]-AMP solution absorbing CO2 was the fast pseudo-first order reaction.
k2 and E of CO2 absorption into [Hmim][Gly]-AMP solution were obtained.