The purposes of this research were: 1) to study the participative management factors and knowledge management, 2) to study the relationship between the participative management factors and knowledge management, 3) to analyze the affect of participative management factors toward knowledge management and 4) to build up the predictive equation factors of participative management that affected   knowledge management in private schools in Chachoengsao.
	The 308 samples of this research consisted of administrators and teachers from private schools in Chachoengsao. The instrument used was a questionnaire of 5 rating scales. The estimated 5-level data were statistically analyzed by using frequency, percentage, means, standard deviation, correlation coefficient Pearson and multiple regression analysis.
	The results were summarized as follows: The participative management factors in private schools were at a high level. They were leadership, organizational environment motivation, human capacity, schools and educational technology, respectively. The knowledge management was also at a high level, including, analysis of stored knowledge, knowledge embodiment, knowledge survey, knowledge utilization and knowledge transfer, respectively. The relationship between the participative management and knowledge management was positive at the .05 level. The participative management factors that affected the knowledge management positively were personal characteristic, leadership, educational technology and schools. Predictive equation factors of participative management were Z=.294X6+.323X1+.214X4+.179X3.
