Abstract: In order to prepare a high temperature resistant thermoplastic composite material with integrated structure and function, which has excellent mechanical properties and electromagnetic interference shielding effectiveness at the same time, the mechanical properties, electrical conductivity and electromagnetic interference shielding effectiveness (EMI SE) of continuous carbon fiber reinforced polyether ether ketone composites (CF-CNT/PEEK) with different components of carbon nanotubes (CNT) were studied. The mechanical properties, interface morphology and shielding effectiveness of SCF-SCNT/PEEK laminates prepared with CNT modified PEEK sizing agent (SCNT) as conductive fillers were investigated, and the effect of the CNT (ACNT) without surface modification and only activation comparative experiment were compared. The results show that an appropriate amount of CNT will improve the mechanical properties, electrical conductivity and shielding effectiveness of the CF/PEEK laminate. SCNT is easier to uniformly disperse in PEEK than ACNT, and has a better combination with SCF and PEEK. In all samples, the tensile strength of SCF-SCNT/PEEK laminates with only 1wt%SCNT increased by 20.8% to 778 MPa compared with laminates without CNTs. Bending strength is increased by 25.9% to 1684 MPa. The conductivity is increased by 5 times, reaching 0.15 S/cm. The electromagnetic interference shielding efficiency is increased by 69.76%, with an average value of 34.97 dB.