Based on the observation datum of typical field

experiment study on the spatial and temporal variability of infiltration have been performed on a surface irrigation field during the growing period of winter wheat

the distribution characteristic of spatial and temporal variability of infiltration parameters were described

and the correlation between different parameters were analyzed.Results showed that the spatial variability of soil infiltration parameters continually decreased during the growing period of winter wheat

the temporal variability gradually weakened and became stable.The difference of infiltration capacity was not obvious after pre-irrigation

so the effect of temporal variability can be neglected in the field irrigation design and management

or surface irrigation simulation.Because of the strong correlation and similar spatial and temporal variability between f_0 and Z_(180)

the distribution characteristic of spatial and temporal variability of f_0 can be used to describe the soil infiltration characteristic and weigh the soil infiltration capacity.