A multi-function washing and decontamination system for a hose is provided. The multi-function system includes a wash unit, a submersion unit, a hose test unit and a control unit. The control unit controls a motor driven pump and a blower unit in one embodiment. In another embodiment, the multi-function system is portable and is mounted on a trailer having at least one wheel. The wash unit of the multi-function washing and decontamination system of the present application includes a plurality of adjustable rollers and a flexible track defining a hose path that includes at least one nozzle for washing the hose and at least one air knife for drying the hose. The multi-function washing and decontamination system also includes a submersion unit for pre-soaking a hose prior to entry of the wash unit in a solution that decontaminates the hose. The multi-function washing and decontamination system may also include a hose test unit for testing a hose after washing and decontamination.