The utility model discloses a smoke and dust minimum discharge test filter membrane strorage device, characterized by: the setting can be guided and supported deposits the case, sets up horizontal baffle together at the middle part of depositing the case, and it has each through -hole to distribute on horizontal baffle, it in each through -hole, makes the weighing tank be on horizontal baffle and hangs to place each weighing tank one -to -one inlay card in depositing the case, the weighing tank comprises staving and bung, and it is closed that the bung of lid on the staving makes the staving be, and the monolithic filter membrane is independently placed and is sealed in the staving, makes monolithic filter membrane and weighing tank realize whole weighing. The utility model discloses can protect the filter membrane of entrapment minimum discharge smoke and dust well, make filter membrane and weighing tank can carry out whole and weigh, effectively improve the measuring accuracy of coal fired power plant smoke and dust minimum discharge.