Abstract:the splitter of matroid family is studied here. First by using splitter theorem and single-element extension theorem, we derive a proposition: if ={ is a binary matriod and do not include matriod which is isomorphic to } then is a splieter of . And then another two conclusion: 1. if is a regular matriod and do not include -minor ,then is a splitter of , 2. is a splitter of and , And get the representation of decomposition of regular matriod of two matriod family.