1. Improve the efficiency of forest resources investigation. Remote sensing technology has the advantages of macro, multi-temporal, multi-resolution and multi-band, and can obtain forest resources information quickly and effectively.

2. Improve the accuracy of the sample survey that some people can't actually measure. Remote sensing technology can quickly and accurately obtain sample information, thus improving the accuracy of investigation.

3. Provide some basis for the state and governments at all levels to formulate economic and environmental development plans, policies and guidelines. Remote sensing technology can quickly obtain forest resources information and provide data support for government decision-making.

4. Monitor changes in forest resources. Remote sensing technology can obtain the dynamic change information of forest resources in time, which is conducive to taking timely measures.

5. Realize the sustainable utilization of forest resources and the sustainable development of forestry economy. Remote sensing technology can accurately obtain information such as the quantity, quality and spatial distribution of forest resources, which is conducive to the sustainable utilization of forest resources and the sustainable development of forestry economy.

6. Promote scientific and technological progress in the field of forest survey. As a new scientific and technological means, remote sensing technology can promote scientific and technological progress in the field of forest investigation.