The invention belongs to the field of evaporators and particularly relates to an intelligent deforming heat exchange pipe. The intelligent deforming heat exchange pipe comprises a heat exchange pipe valve, a telescopic rod valve, a length sensor, a weight sensor, a telescopic rod, a moving mechanism and a controller. When the weight of to-be-treated liquid is monitored to be smaller than or equalto a first weight value, the telescopic rod is inflated, so that the section shape of the heat exchange pipe is turned from a semicircular face into an inverted-triangle face. When the weight of the to-be-treated liquid is larger than or equal to the first weight value, the telescopic rod starts to be deflated, so that the section shape of the heat exchange pipe is turned from the inverted-triangle face into the semicircular face. When the length value L is smaller than a first interval value, the interval between every two adjacent rows of heat exchange pipes is decreased from the first interval value to a second interval value through the corresponding moving mechanism. The heat exchange pipe is made of a soft material and a hard material, so that the section shape of the heat exchange pipe is changed along with change of the to-be-treated liquid amount, and the intervals between all the heat exchange pipes are changed along with change of the length value L, so that intelligent control over the evaporator is achieved, the evaporation effect is optimized, and energy is saved.