In traditional construction modes, construction of large gas field surface engineering projects is affected by many factors, which will bring many difficulties to smooth implementation of projects. Modularization construction is a set of brand new mode for large gas field surface engineering design in such aspects as safety management, production efficiency, quality assurance, procurement, transportation and warehouse management, comprehensive utilization of resources and project implementation plasticity. Such construction mode has more advantages than traditional ones and application of such construction mode will be mainstream direction of gas field surface construction.