The invention provides a cement stabilized macadam base layer local cold regeneration technology method, and relates to the technical field of road engineering. According to the provided cement stabilized macadam base layer local cold regeneration technology method, the optimal mixing amount of pitch old materials in milling and planing materials is determined through the experiment, and accordingly, the regenerated road surface has good dry shrinkage performance and base layer strength; the content of large-grain-size aggregates in aggregates is increased, and the content of equal small-grain-size aggregates in the aggregates is reduced; after the aggregates are added in the milling and planing materials, the content of the large-grain-size aggregates in the milling and planing materialsis increased, the influences of large-grain-size aggregate reduction after the milling and planing materials are crushed through a milling and planing tool are eliminated, and the final strength of the regenerated road surface is high; through the wet material adding technology, powdery cement is added, accordingly, pollution during construction is reduced, and green and civilized construction isachieved; and through single-time layering regeneration, the problem that according to a traditional method, during urban environment construction, the regenerated base layer incomplete thickness regenerated compaction degree or the regenerated base layer compaction degree is insufficient is solved.