The invention discloses an energy tower with a solution adjusting device, comprising an energy tower body (1); the invention is characterized in that the entrance of a closed solution barrel (7) is respectively connected with the inlet of the energy tower body (1) and the outlet of an evaporator of a system heat pump unit via a medicating electromagnetic valve (8), and the outlet of the solution barrel (7) is connected with the energy tower body (1); the outlet of the energy tower body (1) is connected with the inlet of the evaporator of a heat pump unit via a secondary refrigerant circulatingpump, and the inlet of the energy tower body (1) is connected with the outlet of the evaporator of the system heat pump unit; the medicating electromagnetic valve (8) is electrically connected with acontroller; the system controller can send out instructions to automatically add secondary refrigerant dissolvent or replenish water according to the water quality change of the secondary refrigerantin the energy tower, thereby maximally bringing low solidifying point and inhibition effect of medicine into play; under the conditions of all kinds of ambient humidity and temperatures, the secondary refrigerant solution can automatically remain stable, and is applied to heat pump operation in energy tower system in winter.