Abstarct: Currently, the water shortage crisis is one of the biggest global threats facing most countries in the world, including Iran. Although more than 2/3 the earth's surface is made up of water, but most of it is seawater is included and only 0.014% of it is drinkable and available. Therefore, in the current situation, no solution is conceivable other than desalination of seawater, which has been well taken in this regard, but most desalination methods have been costly due to dependence on fossil fuels and brine water treatment of waste from these factories and it also needs basic infrastructure that is large-scale cost-effective, and this for developed areas are suitable but not suitable for deprived and remote areas. But the humidification-dehumidification system has the advantage of being set up for small and scattered communities with low cost and simple equipment. In this research, by studying various desalination methods and reviewing the work done in the field of HDH, four new configurations a, b, c, and d were proposed and designed with brine water recirculation to reduce energy consumption and brine waste as much as possible. Then, by obtaining the governing equations, thermodynamic modeling was performed. The results show that the hybrid system of HDH and heat pump significantly reduces energy consumption and improves performance. Thus, in the d optimized configurations, the gained output ratio increased from 0.623 to 3.474, and also the values of recovery ratio and water produced increased by 20 and 30%, respectively. In addition, in this study, the effect of using an economizer in the system to increase productivity was well identified in the results, That in configurations a, only by adding an economizer to an HDH system, the gained output ratio is almost 70% improved, and in configurations c, with only by one change to configurations b¬(adding economizer), the coefficient of performance of the heat pump is reduced about 45%.