In this study, we synthesis polyimide with high carbon dioxide gas transport property using 2,2-bis(3,4-carboxylphenyl) hexafluoropropane, 2,3,5,6-tetramethyl-1,4-phenylenediamine and Poly(ethylene glycol) bis(3-aminopropyl) terminated and then we estimate synthesized polymer solubility parameter and non-solvent phase separation coefficient to confirm proper asymmetric membrane preparing solvent, also we measured the viscosity of the polymer solution to check polymer contents in membrane solution and prepare asymmetric membrane with LiNO3 additives. The morphology and gas separation property of membrane prepared by phase separation method was confirmed using Field Emission Scanning Electron Microsope and the single gas permeation measurement apparatus. We confirmed that the carbon dioxide permeance of the membrane decreased and the selectivity increase with volatile solvent contents. We confirm gas separation property of one of the flat sheet membrane showed PCO2-400GPU, αCO2/N2-20. So, we used this composition that showed high gas permeation property for the preparation of the hollow fiber type membrane. It is made under various spinning conditions such as by such as Nozzle temperature, bore fluid rate, air gap and volatile solvent contents in other to find optimized composition and preparation conditions, the gas permeation property and morphology of spun hollow fiber membranes were characterized using bubble flow meter and FE-SEM respectivity. The carbon dioxide permeance of spun hollow fiber membrane increased but CO2/N2 selectivity little change with formed skin-layer thin. Netx step, we prepare large scale module with 100 hollow fiber then we check mix gas property of hollow fiber module. Increasing pressure ratio, the separation factor and CO2 flux are also increase. The hollow fiber module show PCO2-137, separation factor 7.8 at pressure-ratio 30. We confirm hollow fiber module operation with high pressure ratio, the module mixed gas transport property show high value.