The random isotropic background of Von Kraman pattern is introduced into wave equations of viscoelastic monoclinic anisotropic media. The snap-shots and synthetic seismograms in this nonhomogeneous complex media are simulated by staggered grid finite difference. The result shows following chacacteristics： wave field in this complex media embodies the characteristics of both monoclinic media and random media; dilatational and shear quality factors attenuate the amplititude obviously. In detail, the scale length became smaller, the disturbance caused by random media became the stronger for the case of same variance. This work should be helpful to understand the basic characteristics of the fracture oil reservoirs.