It has become a common phenomenon for children to wear jewelry, and now children have a great degree of aesthetic, but from the perspective of health, children should pay more attention to prevent the occurrence of jewelry disease when they wear jewelry. Children are still in the period of growth and development when they are young. Some jewelry materials with poor quality will have harmful effects on children's skin and appear allergic phenomenon. The European Union, the United States, Canada and other countries or regions have formulated special regulations for children's jewelry to limit the content of some metal elements.

（1） USA

1. CPSIA lead content test

2. American h.r.4428 cadmium content test

3. California 65 act

3.1 lead content test

3.2 phthalate content test

（2） EU

1. EU REACH annex 17 cadmium content test

2. Nickel release test

2.1 EN1811

2.2 EN12472

（3） Canada

1. Canadian children's jewelry requirements