Abstract: The development situations of Panonychus citri (McGregor) were studied at 18, 22, 26, 28, 30 and 35 ℃, and the data obtained were used to determine the survival rates. The results showed that there were significant different effects on P. citri (McGregor) of 18, 22, 26,28, 30 and 35℃. The development of P. citri (McGregor) decreased with temperature rising with 18~30℃, while the development increased at 30~35℃. The relationship between development and temperature displayed a good fit to the Logistic equation. The temperature of 26~30℃ was more suitable than other temperature treatments to its development and survival situation.