A new SVLX static mixer is original designed by the author with the structure of alternative connection of the SV static mixing unit and cross shaped stationary helical fin. The two-phase flow is sheared, separated, impinged and rotated by SV static mixing unit, as well as whirled by the cross shaped stationary helical fin. Hence the mixer efficiency is enhanced. The most advantage of this design is the mixer efficiency is more enhanced with none applied force. Followed by the static mixer structure illustration, the preliminary analysis of the two-phase flow field is carried out, which provides some proofs for the selection and optimization of the new SVLX static mixer structural parameters.