In accordance with the structure can be divided into bridge plastic towline and fully enclosed plastic towline; 
according to the model is divided into small towline, the general type of towline and large towline; 
according to the noise figure can be divided into ordinary towline and quiet towline; 
Can be divided into ordinary towline, parallel towline, S-type towline; 
according to raw materials are divided into the original package of plastic and recycled plastics.