The utility model relates to a washing terminals for urea two -stage process evaporation separator, this washing terminals include an upper end opening lower extreme confined feed liquor pipe, and the feed liquor pipe is gone up outside extension of longitudinal separation and is set up a plurality of layers of injector set, every layer of injector set all includes three above tilt up's nozzle, and each even interval of nozzle circumference of every layer sets up on the feed liquor pipe, and each nozzle all communicates with the feed liquor intraduct. The utility model discloses can effectively solve the biuret gathers and deposit wall built -up phenomenon at urea two -stage process evaporation separator inner wall.