Since November，due to the influence of weather and temperature，the strength of prefabricated hollow slabs of the wharf upgrading project of Yueyang Changling Refining and Chemical Port Department rise slowly，and cracks appear in some prefabricated hollow slab，which seriously affect the construction period and the component quality.Aiming at these problems，this paper studies the method of improving prefabricated strength rising rate in the process of construction and the component quality，and carries out means of steam curing technology contrast experiment respectively. The results show that the steam curing technology can effectively improve prefabricated in the rate of strength rise in the process of production and reduce the components of the occurrence of cracks.The steam curing technology can improve the rate of strength rise and the quality of components，and reduce the waste loss percentage in the production process of similar prefabricated components，so as to effectively save the construction period and reduce the cost.