With the accelerated development of economy, the proportion of household electricity power consumption in total power consumption is getting larger and larger. So it is necessary to have a research on the optimal control of different types of household loads so as to reduce power consumers' cost as well as to improve household energy efficiency. In this paper, an optimal control strategy of household energy efficiency management is presented, focusing on an electricity user who owns multiple types of household loads. In this control strategy, different types of household loads, the rooftop photovoltaic generation equipment, and as well as the household energy storage devices are all taken into account and modeled respectively. The coordinated optimal control of all these loads is discussed considering the time-of-use price. A numerical example demonstrates that the total power cost of a family can be reduced remarkably by carrying out the optimal control strategy proposed, and also, the utilization efficiency of the rooftop PV power generation equipment can be improved.