This system summarizes the actual needs of fixed sample and liquid sample sampling and testing in the production process, and integrates the application of machine gripper operation, precise liquid preparation system, ICP detection, process control, visual recognition, computer and other technologies to improve the efficiency of laboratory liquid sample analysis and inspection, resolve prominent problems such as multiple analysis tasks in a short period of time, eliminate the influence of human factors on the inspection results, reduce the workload of inspectors, and ultimately achieve efficient, stable, unmanned or less-manned operation of sampling, analysis and testing.