Abstract: In the course of data acquisition of reliability experiment on agricultural equipments, there were some problems in data accessing program in Kam-500 data acquisition system such as simple functions, only reading all data in the CF card, limited data format，low storage efficiency etc. To solve the problems above, data accessing method based on storage strategy was put forward. Data accessing software centering on data description file was developed to enable user access to experimental data. It read and stored experimental data to specified data file format from compact Flash Card according to users storage strategy and data format description file. The data accessing method based on storage strategy meet the needs of storage efficiency improvement and reading flexibility.