The invention provides an electroplating solution and method for electroplating a bright nickel-titanium alloy. The electroplating solution is composed of the following components: 1) 50-60 g/L nickel sulfate hexahydrate, 2) 0-15 g/L nickelous chloride hexahydrate, 3) 3.5-10.5 g/L titanyl sulfate, 4) 30-40 g/L boric acid, 5) 50-60 g/L trisodium citrate, 6) 8-10 g/L imine succinate, 7) 2-4 ml/L brightener and 8) 8-10 ml/L assistant. The electroplating parameters are as follows: the pH value is 3-5, the temperature is 40-60 DEG C, the cathode current density is 1.0-5.0 A/dm<2>, the anode material is a nickel plate or stainless steel board or ruthenium titanium alloy anode, and the electroplating time is 10-60 minutes. The electroplating solution is simple in components, non-toxic and pollution-free, and free of Cr<6+>; and when being used for electroplating the bright nickel-titanium alloy, the electroplating solution can substitute the electroplating technique, save the nickel, and substitute the electroplating of toxic and contaminative hexavalent chrome. The invention proves that the wear resistance, corrosion resistance and toughness of the coating are greatly enhanced. The invention has very important actions in common industry and in the fields of military affairs, national defense, aerospace and submarine ships.