A feedback energy-release system and operation method thereof are provided, adapted to provide an energy parameter to an energy-release apparatus for performing a plurality of energy-release operations on a target skin. A feature capturing device captures tissue feature data of the target skin, wherein the tissue feature data captured before and after each energy-release operation are a first and a second tissue feature data, respectively. A control device compares the second tissue feature data with a plurality of reference tissue feature data to obtain at least one suggested energy parameter, determines grades of the tissue feature data of the current energy-release operation and records a grade distribution of the tissue feature data. The control device generates the energy parameter of the next energy-release operation according to a difference between the first and second tissue feature data, the at least one suggested energy parameter and the grade distribution.
