The utility model discloses an urban rail transit vehicles section carwash line arrangement structure, including vehicle depot application storehouse, the throat district in vehicle depot application storehouse is provided with the income section line and play section line of following principal direction and arranging side by side, it is provided with first single branch -cut bridge and second list branch -cut bridge to go into the section line and go out between the section line, first single branch -cut bridge is utilized the storehouse with vehicle depot and is kept away from the setting, second list branch -cut bridge is utilized the storehouse to be close to with vehicle depot and is set up, the outside of going into the section line is provided with through type carwash line, the one end that the carwash line is close to vehicle depot application storehouse is equipped with first shunting neck, first shunting neck passes through scissors crossing and goes into the section line connection with the combination section department of carwash line, the one end and an income section line connection in vehicle depot application storehouse are kept away from to the carwash line. The utility model discloses add a shunting neck in the one end of through type carwash line to through scissors crossing and a carwash line and an income section line connection, section reciprocating type carwash of adoption is gone into from time orientation to the implementation part train, can shorten throat length.