The invention discloses a low-carbon steel coil plate for an oil filter thread cover plate and a manufacturing method thereof. The low-carbon steel coil plate comprises chemical components including,by weight percent, 0.03 to 0.05% of C, not larger than 0.040% of Si, 0.30 to 0.50% of Mn, not larger than 0.018% of P, not larger than 0.018% of S, 0.028 to 0.058% of Al, 0.030 to 0.060% of Ti, and not larger than 0.0045% of N. A plate blank is heated to be larger than or equal to 1190 DEG C, the heating time is larger than or equal to 175 min, the soaking time is larger than or equal to 40 min, through rough rolling and finish rolling, a hot rolling plate is obtained, the finish rolling final rolling temperature ranges from 885 to 915 DEG C, the coiling temperature is 580 to 640 DEG C, finally, flattening and acid pickling are carried out, according to the properties, Rel is 280 to 330 MPa, Rm is 380 to 430 MPa, A50 is larger than or equal to 40%, the grain size is larger than or equal to9 levels, and the difference between the surface and the 1/2 position of the thickness is smaller than or equal to 1 level. The low-carbon steel coil plate has the higher strength, better ductility,uniform in structure property, and free of cracking in stamping broaching and flanging, turning threads on the inner wall of a cap mouth do not generate burrs, and the requirement of the oil filter thread cover plate anti-deforming after the pumping pressure property of an oil filter is improved can be met.