In this paper, we design a loading assistive robot system Type III for the handicapped at a work space. We survey to select the type and the class of the handicapped to be assisted and decode the task for each class. Mission statements to develop an assistive robot are derived based on this survey. According to the mission statements, loading assistive robot Type II was previously developed, and field tests were performed. From the field tests, we find out some drawbacks. We design a loading assistive robot Type III which complements some defects of the Type II.