1. A work assisting system comprising:a sensor unit that detects a position and an orientation of each of the body parts including a hand of a worker;
a supply unit that supplies a part or a tool to the worker; and
a cell controller that controls the supply unit, the cell controller comprising:
a machine learning unit that constructs a learning model based on the detected position and orientation of the each of the body parts and a label relating to a work status of the worker, and
a work status determining unit that determines the work status of the worker by using the constructed learning model,
wherein the supply unit selects the part or tool based on the determined work status and a work table in which the labeled work status is correlated to a motion of the supply unit, and changes a position and orientation of the part or tool based on the position and orientation of the each of the body parts.