PURPOSE: A solar heat storage tank for home is provided to freely change the outer interior design and to facilitate the installation in the indoor space in spite of the small structure. CONSTITUTION: A solar heat storage tank for home comprises a heat collector(100), a heat storage tank(200), a heat collecting line(300), a heating line(400), a hot water line, and a pump station(600). Plural line connection pipes(210a~210f) are formed in the outer circumference of the heat storage tank to be communicated with inside. The heat collecting line is connected to the heat collector with a heat collecting pipe(310) and heats the storage water of the heat storage tank with the heat source. A coil(320) connected to the heat collecting pipe is formed in the lower part of the inside of the heat storage tank. The heating line is formed in a heating pipe(410). The heated storage water is supplied to the indoor through the heating pipe. The hot water line forms an inside tank(510) inside the heat storage tank. The hot water heat-exchanged through a hot water pipe(530) according to the water supply is discharged to a water supply pie(520) or is recirculated to the inside tank. The pump station respectively forms first, second, and third inflow pipes(610a,620a,630a) and first, second, and third drain pipes(610b,620b,630b). Additional circulation pumps(640,650) are formed at the first and second inflow pipe sides of the heat collecting line and the hot water line.