This paper is a continuation of "Discussion on Seismic Strengthening Scheme of RC Column in Tall Buildings: ⅰ". Design method of wet-connected coated steel frame strengthened column is expatiated, and calculating formulas of strengthening design are presented. 本文是《高层建筑混凝土柱抗震加固方案探讨(一)》[1]的续篇,阐述了高层建筑混凝土方柱采用湿式钢构套加固设计方法,给出了加固设计的计算公式。