Gas Chromatography Mass Spectrum(GC-MS)was applied to study the thermal stability and pollutants absorption from food (simulants), such as rice powder, milk powder, white sugar and rice which were packed by paper packaging materials and Porapak which was usually used as the solid food simulant in migration tests. Results showed that when temperature got to 100 ℃ , the rice was cooked, the white sugar was thermal decomposed, and the milk powder was carbonized, the thermal stability of rice powder is the best; under the temperature of 75 ℃ , the absorption of these food (simulants) to all the surrogates are as follows: Porapak>rice powder>milk powder>white sugar>rice. Considering to the cost, it was concluded that rice powder can substitute the expensive Porapak to be used as solid food simulant to assess the safety of paper food packaging materials in migration tests.