The invention discloses an intelligent variable-temperature seed soaking tank for plant seeds. The intelligent variable-temperature seed soaking tank comprises a temperature control chamber and a seedsoaking liquid chamber, wherein a temperature control pipeline communicated with the seed soaking liquid chamber is arranged in the temperature control chamber; a refrigeration compressor, a heatingstick and a circulating pump are also arranged in the temperature control chamber; a temperature sensor, a rotary type jet head and an electric stirring stick are also arranged in the seed soaking liquid chamber. The intelligent variable-temperature seed soaking tank for the plant seeds belongs to the technical field of plant seed treatment, and can treat crop seeds, grass seeds, forest seeds andflower seeds before sowing. The intelligent variable-temperature seed soaking tank is simple in structure and good in seed soaking effect; the temperature changes intelligently (the temperature rangeis 0 to 100 DEG C, and temperature and time are set according to optimal seed soaking temperature modes of different seeds); the seed germination rate and the tidiness can be effectively improved, andthe stress resistance of the seeds is enhanced; the problem that the seeds are difficult to discharge after being soaked is solved.