What is your topic of finance research?
You should narrow it and then you will find what quantitative tool you need indeed.
For example, if you want to do research on Mathematical Finance and focus on derivative pricing. Then, you should study Mathematical Analysis, Numerical Method and so on. Also, you are advised to master C++.

thanks

建议先弄好高数，若是有能力就看数学分析证明；其次是线性代数或高等代数。这两门是基础，相对偏应用的是概率论、数理统计等

恩恩   有没有哪些树立统计软件是必须要掌握的呢

不知你是啥背景，SPSS相对简单，数据很好处理，找个破解版就能用，关键是对结果的解释，就得靠你的数理功底了；此外，R也不错，其他的统计软件大都类似

嗯  那个excel应该就是最基础的了啊