The invention relates to a complex lithium-base lubricating grease and a production technique thereof. The complex lithium-base lubricating grease comprises the following components in parts by weight: 9-13.5 parts of 12 hydroxystearic acid, 3-4.5 parts of decanedioic acid, 2.6-3.9 parts of lithium hydroxide, 5-50 parts of compound calcium sulfonate lubricating grease, 22.8-78.3 parts of base oil, 0.5-1 part of thickener, 1-3 parts of multifunctional agent, 0.5-1 part of antioxidant and 0.1-0.3 part of metal deactivator. The production technique comprises the following steps: converting superhigh-base-number calcium sulfonate with a conversion agent at 60-100 DEG C for 20-60 minutes until the superhigh-base-number calcium sulfonate becomes obviously thickened, and heating to 140-180 DEG Cto remove water, thereby obtaining the complex calcium sulfonate lubricating grease. The invention has the advantages of long service life in the occasions of long grease-complementation period under long-term heavy load, slight oxidative stain at high temperature, excellent anti-rusting property in damp or sea occasions, and low loss in the occasions of substantive water flushing; and the invention has favorable lubricating property and can prolong the service life of the bearing in the occasions of dampness and heavy load.