Influences of monocalcium phosphate monohydrate applying modes on the availability to rice and the distribution of available P in soil were studied through pot cultivation in greenhouse, and based on the results the desired applying mode of phosphate fertilizer in rice field was recommended. The results showed that the concentration of total P in surface water was the highest under broadcasting phosphate fertilizer on the soil surface, reaching up to 4.8 mg/L , while under other applying modes, the concentrations could meet the standard of Ⅲ in GB3838-2002; mixed applying mode could provide solid uptake room and highly available P for rice; in furrow application mode, most of P applied accumulated in a short range of less than 3 cm upper and lower the application band; in rice field, mixed applying phosphate fertilizer was a preferential considered mode for phosphate application; however, if available P in soil was relatively high, phosphate fertilizer should be applied in dry season.