In this paper

the absorption of circularly polarized and the X-mode EM-wave by inhomogeneous magnetized plasmas is discussed

and the attenuations are calculated under different conditions.The results illustrate that the collisional absorption have a maximal value when the collision frequency is near the EM-wave frequency.Meanwhile

the absorption is very poor when the EM-wave frequency is small.The absorption is efficient with a high incident EM-wave frequency.We also find out that the magnetic fields have an influence upon the attenuations of EM-wave.For the right circularly polarized EM-wave

the peaks of the attenuation curves move to the low collision frequency

and the attenuations reduce when the magnetic field grows.For the left circularly polarized EM-wave

the peaks of the attenuation curves move to the high collision frequency

and the attenuations becomes large when the magnetic field reduces.And we find out that the effective frequency band width of absorption can be broadened under some conditions while the absorption of EM-wave have a maximum.This characteristic is remarkable when the EM-wave frequency is low.