We use the numerical method to study the influences of q deformation on the quantum statistical properties of even and odd q-coherent states (E一。q-C Ss).It is shown that nonclassical properties of E-0 q-CSs are very different from those of the usual even and odd coherent states (ECSs, OCSs). It is found that squeezing effect appears for both even and odd q-CSs and has quasiperiodicity, and the antibunching effect may appear for even q-CSs but disappear for odd q-CSs in some range of the parameters q and r.