The hydrogen absorption-desorption thermodynamics of the magnetic refrigeration material LaFe11.6Si1.4 alloy at 25 oC and its hydrogen absorption kinetics under different hydrogen pressures (2.0×106, 2.5×106 and 3.0×106 Pa) have been investigated. The results show that about 2×105 Pa hysteresis occurs in the process of hydrogen absorption and hydrogen desorption of LaFe11.6Si1.4 alloy at room temperature; there is an incubation period sensible to the hydrogen pressure in the process of hydrogen absorption. Increasing hydrogen pressure conduces to saturated alloy hydride rapidly, whereas it slightly influences the hydrogen absorption capacity. It is difficult to prepare LaFe11.6Si1.4 magnetic refrigeration material with accurate hydrogen content, i.e. variable Curie temperature, via changing the hydrogen pressure at room temperature