In order to study the principle of blending rice,16 recipes of blending rice were analysed.The results show that:a.The blending rice of 4 source rice has better and stabler favour than the blending rice of 2 source rice and the blending rice of 3 source rice;b.LIR is the best variety to improve the LQEIR,followed by WR and KR;c.The varieties of sweet-smelling easily improve the LQEIR.The differences of rice sources should be taken into consideration when blending rice.Sweet-smelling rice helps to improve th...