Abstract: With the large-scale commercialized planting of GM（Genetically Modified）crops and the constant development of GM technologies in recent years，GM products with disease resistance，insect resistance，herbicide tolerance，stress resistant，high yield and fine quality have growingly increased and also widely been applied. GM products brought convenience and economic benefits to people while also brought security issues. To strengthen the management of GM products，the development of testing technologies for GMOs were especially critical. At present，the testing technologies for GMOs and their derived products are mainly classified into two categories：one is based on exogenous nucleic acid，mainly including conventional PCR，quantitative PCR，isothermal amplification technology，gene chip technology and so on；the other is based on exogenous protein，mainly including ELISA，Western blot，test strip technology and so on. Each testing technology has its advantages and disadvantages and the scope of application，in real testing process we should select the most effective technology or combination of them for meeting the purpose of testing，while based on the requirements of testing as well as the types and characteristics of GM products. In this paper，we briefly reviewed the principles，advantages and disadvantages and research progress of each testing technology，meanwhile summarized and prospected the development direction of the testing technologies for GMOs，aiming at promoting testing technologies for GMOs in China to better adapt to the current development of transgenic area.

Key words: genetically modified organisms, testing technology, nucleic acid, protein