This paper studys on the characteristic of considerations and commitments that influence on shareholder benefits in equity splitting reform， analyzes the influencing factors of equity splitting reform， furthermore， explores the relationship between equity structure and scheme characteristic. Empirical tests appear that the negotiable shareholders were endowed proportion considerations that mostly reflect equilibrium expectation and consideration costs that the non- negotiable shareholders paid， what's more important that equity structure has an important effect on various scheme characteristic， at the meantime， the behavior of the non- negotiable shareholders was also influenced by equity structure.