Abstract: The production of SPCC（steel plate cold-rolled common） by Baoxin bell-type annealing furnace, LOI bell-type annealing furnace and continuous annealing furnace was studied. The results show that, compared with Baoxin furnace SPCC product, the surface carbon black of LOI furnace SPCC product is less, the reflectivity is higher, the yield strength and tensile strength are slightly lower, the extension after break is a little higher, and the performance is more stable.The microstructure of bell-type annealed SPCC is cake grain and grain carbide. However, the microstructure of continuous retreated SPCC is isometric grain, bulk carbide at grain boundary and granular carbide in grain boundary. The grain size of SPCC products is obviously smaller. Compared with SPCC by bell-type annealing furnace, the yield strength and tensile strength of SPCC by continuous annealing furnace are higher, and the elongation after fracture is lower.