Disposable sterile urine collecting tube

The utility model discloses a disposable sterile urine collecting tube which comprises a collecting tube body, a urine taking guide sleeve is arranged at the top end of the collecting tube body, and a silica gel cushion sleeve is nested at the top end of the outer portion of the urine taking guide sleeve. A quick dismounting structure is arranged between the bottom of a urine taking guide sleeve and the top of a collecting pipe main body, so that an assembling insertion sleeve is inserted into a connecting insertion groove during use, and the assembling insertion sleeve can be properly extruded towards the inner side through a reserved groove in the insertion process; a stable clamping strip is embedded into a positioning clamping groove in the process that an assembly inserting sleeve is inserted into a connecting inserting groove, so that the assembly inserting sleeve is fixed into the connecting inserting groove, the inserting position is sealed through a sealing gasket, after urine taking is completed, th