The invention discloses an electroplating method for a flexible circuit board. The electroplating method for the flexible circuit board comprises the steps of preparation of graphene electroplating liquid, surface pretreatment of the flexible circuit board and electroplating of the flexible circuit board. In the electroplating process of the flexible circuit board, graphene is added in the electroplating liquid, is a cellular plane film formed by carbon atoms in an sp2 hybridized mode and has quite great characteristics such as strength, flexibility, electrical conductivity, heat conductivityand optical properties, a great film can be formed on the flexible circuit board through the matched electroplating method for the flexible circuit board, and the strength, toughness, electrical conductivity and heat conductivity of the circuit board are improved.