随着林业信息化技术的快速发展，林业领域逐渐意识到数据资源的重要性。本研究旨在通过研究分类分级方法对林业数据进行系统化管理。首先，将林业数据依据用途分为林业基础地理数据、林业调查规划数据、林业业务数据和公共数据四大类；其次，根据数据遭到篡改、破坏、泄露或非法获取的潜在危害程度，将其分为1-4级四个安全级别。通过制定林业数据共享服务规范，建立在内网、政务网、互联网三网环境下的数据安全管理体系，实现数据交换、分发及应用的规范化和制度化，从而促进林业数据在业务中的共享服务和协同应用。

With the rapid development of forestry information technology, the forestry field has gradually realized the importance of data resources. This study aims to systematically manage forestry data by studying classification and grading methods. Firstly, forestry data can be classified into four categories based on their purposes: forestry basic geographic data, forestry survey and planning data, forestry business data, and public data; Secondly, based on the potential level of harm caused by data tampering, destruction, leakage, or illegal acquisition, it is classified into four security levels of 1-4. Through the development of forestry data sharing service specifications, a data security management system based on the intranet, government affairs network and the Internet environment is established to realize the standardization and institutionalization of data exchange, distribution and application, so as to promote the sharing service and collaborative application of forestry data in business.