The temporal and statistical properties of atmospheric coherence length and isoplanatic angle are investigated, based on the long-term measured datum of synthetic measuring system of atmospheric coherence length and isoplanatic angle in the west of China. Meanwhile the mean and standard deviation of atmospheric coherence length and isoplanatic angle in three periods of daytime, nighttime and dusk are given. The probability distributions of initial data show that both atmospheric coherence length and isoplanatic angle are approximately satisfied with log-normal distribution. Besides, the distribution deviation between the sample distribution and log-normal distribution is estimated by sample skewness and sample kurtosis. The correlation between monthly mean of atmospheric coherence length and isoplanatic angle is analyzed, and the effects of the magnitude of upper air and surface turbulence on atmospheric coherence length and isoplanatic angle are evaluated qualitatively.