The toxicity of nine insecticides as well as their controlling effect on Aphis gossypii Glover was tested indoor and in field.The results showed that when aphis gossypii Glover need to be controlled,the first choose is 11% Abamectin.nitenpyram EC,second choose 25% Thiamethoxam Wg,10% Nitenpyram Wg,2.5%Penetrating imidacloprid WP,and 3.2% Emamecfinbenzoate.acetamiprid Me.Their prevention and controlling effects were all above 96% in 7 days.