An emotion improving apparatus (100) includes: a biological information acquiring unit (20) acquiring a biological information of a user; an uncomfortable emotion determining unit (11) determining whether a predetermined uncomfortable emotion occurs to the user based on the biological information acquired by the biological information acquiring unit (20); and a working machine controlling unit (15) controlling the working machine to perform a predetermined operation for improving the uncomfortable emotion to the user when it is determined by the uncomfortable emotion determining unit (11) that the predetermined uncomfortable emotion occurs.