The purposes of this research were : 1) to study administrative factor of school administrators under the Office of  Chachoengsao Basic Educational Service Area 2,  2) to study leadership traits of  school administrators under the Office of Chachoengsao Basic Educational Service Area 2 and 3) to study factors affecting to leadership traits of school administrators under the Office of  Chachoengsao Basic Educational Service Area 2. The samples were 120 administrators under the Office of  Chachoengsao Basic Educational Service Area 2  
	The findings were as follows:
	1.  Administrative factor of school administrators under the Office of Chachoengsao Basic Educational Service Area 2 was at a high level
	2.  Leadership traits of  the school administrators under the Office of Chachoengsao Basic Educational Service Area 2 were at high level
	3.  Factor of operation and factor of social support had correlated at .05 level at a medium level with leadership traits of  the school administrators.
	4.  Factor of social support could predict leadership traits of  the school administrator under the Office of Chachoengsao Basic Educational Service Area 2 at 60.20 percentage The predictor could be written by statistic eguation  as;	
  = 1.423 + 0.069 (X2) =  0.591ZX2
