The invention provides an electrochemical recovery technology and system for noble metal elements. The electrochemical recovery technology comprises the following step that firstly, water is added into ore powder containing the noble metal elements, and the water and the ore powder are stirred so as to obtain ore pulp; then the pH value of the ore pulp is adjusted to be faintly acid, after electro-conductive salt and an oxidizing agent are added, a positive plate and a negative plate in the ore pulp are connected by adopting a high-voltage pulse power supply to carry out electrochemical treatment on the ore pulp, the current, the voltage and the temperature are adjusted in the electrodeposition process, and black noble metal mud is attached to the negative plate after electrodeposition; and after electrodeposition is completed, the noble metal mud on the negative plate is collected so as to complete recovery and extraction of noble metal. The technology has the advantages that the technological process cost is low, the recovery rate is high, and an optimal technological process is provided for many production technologies for directly extracting noble metals from ores containing platinum family elements in the mineral processing field.