Field map is an integrated tool designed for computer aided fied data collection. It is used mainly for mapping of forest ecosystems and for data collection during field examinations. This application is able to work with multi-level relational databases and also provides smooth communication with external devices such as GPS, laser rangefinders and inclinometers. Field map is used in current forest management plans, monitoring of carbon assessment, REDD, wood traceability, the mapping of power lines corridors, etc... Field map is used for example in the National parks and natural reserves, in inventories of natural heritage and the habital mapping. Field map is used in Vietnam at Forest Inventory and Planning Institute for collecting data in sample plot. The research result showed that this equipment is very effective and suitable for data collection in future in the forest inventory field.