The present invention addresses the problem of inefficient utilization in a specimen pre-processing connection system due to integrated operation of a portion for connecting with pre-processing and a portion for connecting with an automated analysis system. The specific structure of the present invention contributes to providing a highly efficient system by causing a function for connecting to pre-processing and receiving a specimen from a pre-processing system and a function for connecting to an automated analysis system and transferring a specimen to the automated analysis system to each operate independently in a single unit, so that the functions do not affect each other during reset processing, and making it possible for either function to operate alone.