Biology and life table parameters of the tenuipalpid mite Cenopalpus lanceolatisetae (Attiah) were studied on leaves of apricot at different temperatures (15, 20, 25, 30 , 35°C) and relative humidity 85% in the laboratory. Temperature had a highly negative effect on the duration of life cycle, female longevity, life span and generation period of C. lanceolatisetae pulcher which decreased with increased temperature. On the other hand temperature positively affected female fecundity, net reproduction rate (Ro), intrinsic rat of increase (R_m), finite rate of increase (e^rm) and sex ratio increased  with increased temperature until 30°C. Thus 30°C is the optimum degree for C. lanceolatisetae (Attiah) development and reproduction.