Network in particular, the Internet's open architecture and unfettered access to the corporate accounting system at the same time a qualitative change has also increased the sensitivity of some valuable data or risk of abuse. In particular, the financial data is an important trade secrets, such as damaged or leak, will result in an immeasurable loss, and thus to ensure safe and reliable financial information online has become the focus of attention. Build a web-based accounting system, the most prominent issue is security. To solve this problem, this paper selects the operating system and software, viruses, hackers, and Trojans, password, etc., put forward the implementation of the network of financial measures should be taken.