Forest ecological security is an important foundation for maintaining national ecological security, and is also necessary for human existence. Forests can provide humans with not only physical value, such as wood and other forest by-products, but also ecological service value, such as beautifying the environment, sinking carbon and releasing oxygen, cultivating water sources, resisting wind, and fixing sand, which is fundamental in maintaining ecological balance. Existing research regarding forest ecological security has mainly focused on the construction of an evaluation index of forest ecological safety, and its content is relatively simple. Research on forestry ecological-industrial symbiosis has not determined the influence of the type of forestry industry, and there is limited research on the influence of forestry industry development on forest ecological security. In view of the above problems and industrial classification, based on the PSR(Press-State-Response)theory and narrow definition of forest ecological security, using forestry statistics from 31 provinces (municipalities and autonomous regions) in 3 years, the present study analyzed the influence and degree of influence of forestry industry development, and forest ecological protection on forest ecological security using a PLS structural equation model, and analyzed the response activities of forest ecological protection in different areas. The results will provide a basis for the policy formulation of forestry industry development and ecological protection, to promote forestry sustainable development. The following results showed that (1) forestry industry development had no significant influence on forest ecological security, but some branch industries influenced the forest ecological security; (2) the forestry primary industry had a significant and direct impact on forest ecological security, and the path coefficient of the influence was 0.175, and the indirect effect is not significant; (3) the direct and indirect influence of the forestry secondary and tertiary development on forest ecological security were both not significant; (4) the influence of the three branch industries on forestry industry were significant, and the impact ranking is: forestry secondary industry, primary industry, and tertiary industry, and the path coefficient of the influence are 0.636, 0.204, 0.151, respectively; (5) the forest ecological protection had a significant and direct impact on forest ecological security, and the path coefficient of the influence was 0.619; (6) compared with other areas, the enthusiasm of the activities of forest ecological protection in the West is not high. Therefore, it was concluded that the forestry industry development, and forestry secondary and tertiary industry do not produce pressure on forest ecological security, and only the forestry primary industry produces positive pressure on forest ecological security, so the adjustment of the structure of the forestry industry should be further strengthened. Increasing the protection response has more impact on forest ecological security than the positive pressure of reasonable utilization; the forest ecological protection in the western region should be strengthened to improve forest ecological security.