With the increasing application of intelligent parking facilities, intelligent parking service robot parking garage has become one of the main technologies of the future development of intelligent parking garage and unattended parking garage. At present, there is no design specification for intelligent parking service robot parking garage, and in practice, the relevant specification guidance is urgently needed. Combined with the completed "Specification for design of intelligent parking service robot parking garage"(abbreviated as Specification), as well as related engineering construction experience of intelligent parking service robot parking garage, the researchers of this work introduced in detail the concept and type of the intelligent parking service robot garage and its main components. On this basis, the paper summarizes and establishes a key technical index system for the engineering design and construction of intelligent parking service robot parking garage with 4 first-level construction indicators, 13 secondary construction indicators and 50 tertiary construction indicators, and introduces the basic concepts of each construction index and the basic provisions of the Specification. The research content of this paper is helpful to the relevant engineers and technicians to understand and apply this Specification accurately, to guide the design and construction of intelligent parking garage, and to promote the intelligent construction and development of parking garage.