This  research  aimed  to  study  the  behavior  of  school  administrators  and  job  motivation  of  primary  school  teachers, performance  under  the  Office  of  Municipality  in Chonburi  and  to  investigate  the  relationship  between  leadership  behavior  of  school  administrators  and  the  performance  of  teachers job  motivation  under  the  Office  of  Chonburi  Municipality.
	The  sample  were  drawn  from  245  primary  school  teachers  under  the  Office  of  Chonburi  Municipality. This  survey  research  used  five   rating  scales questionnaire  as  the  research  tool. The  analysis  based  on  mean, standard  deviation, and  Pearsons  product  moment  correlation.
	Research  finding  were  as  followed : 
 	1.  The  leadership  behavior  of  school  administrators  under  the  Office  of  Chonburi  Municipality  was  at  a  high  level, which ranked  as  supportive  leadership, participative  leadership,  achievement  oriented  leadership  and  directive  leadership  respectively.  
 	2.  Job  motivation  of  primary  school  teachers   performance   under  the  Office  of  
Chonburi  Municipality  was  at  a  high  level, which ranked  as  affiliation  needs,  achievement  needs  and  power  needs  respectively.
 	3.  The  relationship  between  leadership  behavior  of  school  administrators  and  job  motivation  of  teachers  performance  were  related  positively.  
