PURPOSE: Provided is an assembly-style grain germinating system which is configured in an easy assembly structure to select use space widely and make ease of maintenance so that it improves economic effect. CONSTITUTION: The assembly-style grain germinating system comprises the parts of: a base box which includes a heater(1) and a humidifier(2) to provide certain temperature and humidity and a power supply part to contain a switch(4,5) for adjusting the heater and the humidifier and a power supply part to receive external power; an embryo box(20) which forms a net(21) with certain size at a space part to receive grains for embryo on the net; a cotton cloth(25) which covers the upper side of the grains for embryo at the layered embryo box to keep warm; and a control tool which is placed at the uppermost embryo box to detect temperature and humidity of vapor exhausted through cotton cloth and to control driving of the heater and the humidifier of the base box.
