The effect of two different continuous carbon fibers (CCF1 and CCF2) with different material properties onstructure-properties of continuous carbon fibers reinforced polyether-ether-ketone prepreg tapes (CCF/PEEKPT) prepared bya wet powder impregnation process were investigated. The effects of fiber content on the tensile properties, dynamicmechanical behavior, crystallization melting behavior and fracture morphology of prepared prepreg tapes were performed bythe dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC) and scanning electron microscope (SEM)etc. The results showed that, the tensile strength of CCF1/PEEKPT increased with increasing of the carbon fiber contentwithin 50-75 wt%. Meanwhile, the tensile strength of 50-65 wt% CCF2/PEEKPT had the same change trend, but thendecreased when the fiber content of composites was higher than 65 wt%. The storage modulus (E′) of composites increasedwith adding content of carbon fiber. The composites still maintained high deformation resistance when the temperature roseto 290 oC. Compared with pure PEEK, the crystallinity and crystallization rate of the composites both increased with theoccurrence of fiber inducing PEEK crystallization, but the crystallization onset temperature, crystallization temperature andmelting temperature of CCF/PEEKPT moved to low temperatures with adding of fiber content. In general, these observationssuggested that CCF hindered the movement of the polymer chain segment and constrained the spherulites growth of PEEKfor CCF/PEEKPT.