In order to investigate the application effect of fluorocarbon resin （FEVE） in explosive ink， a new type of oil-in-water emulsion bonded system was designed by employing polyvinyl alcohol （PVA） aqueous solution as water phase and FEVE/ethyl acetate solution as oil phase. By adding sub-micron CL-20 particles into bonded system， CL-20-based explosive ink was prepared for direct writing. Scanning electron microscope， rheometer， X-ray diffractometer， and impact and friction sensitivity tester were used to characterize morphology and detonation performance of printed samples. The results show that PVA/FEVE oil-in-water emulsion binder system can stably exist for 174 h. The CL-20 explosive ink with 90% solid content exhibits optimal rheological properties and good printability. The obtained direct writing sample with microporous internal structure displays a smooth surface， and the crystal form of CL-20 explosive is still ε type. The impact energy and friction force of printed samples are 216 N and 4.5 J， respectively. Compared with raw ε-CL-20， impact sensitivity and friction sensitivity of printed samples are reduced by 125% and 200%， respectively. The detonation velocity， critical detonation corner turning， critical detonation thickness of 1-mm line width， and critical detonation size of square section of printed samples are 6772 m·s^-1， 160°， 0.039 mm， and 0.4 mm×0.4 mm， respectively， which show excellent micro-scale detonation capability.