The robot intelligent sampling and preparation system, through key equipment such as primary samplers, new type crushers, and intelligent divider, combined with an intelligent sample collection system based on AGV transport robots, and relying on an intelligent control system and data management system, realizes intelligent functions such as intelligent sampling and preparation, intelligent sample collection and management, intelligent system control, intelligent data management, and intelligent fault diagnosis. The robot intelligent laboratory system automatically receives the coal samples sent by the sample preparation machine, automatically adds samples to the crucible, automatically sends them to the laboratory equipment, automatically weighs them, and automatically conducts fully automatic detection of indicators such as calorific value, total sulfur, ash, volatile matter, and analysis water of the coal samples.