From the certificate application business location data to analyze, information technology and office equipment products, most of the CB certificate applications for Taiwan, Japan and the United States, *** accounted for nearly 70% of the total number of certificates for this product category; household and similar equipment products are mainly from mainland China, South Korea, and Italy; from 2007 onwards, mainland China has been issued by the certificate of the product category to double-digit growth, and for five consecutive years. Since 2007, the number of certificates issued for this product category in mainland China has been growing in double digits, and has ranked first for five consecutive years. Most of the certificate applications for electronic entertainment equipment come from Asian countries and regions, the first place is often Korea, Japan and the two countries to compete, mainland China and Taiwan ranked third and fourth respectively. Lighting equipment, the issuance of certificates by the Chinese mainland and Switzerland take turns to lead. South Korea, Taiwan and the United States to obtain CB certificates for this category of products is increasing, South Korea's development is particularly rapid, from 4 certificates in 2007, soared to 163 certificates in 2011. In terms of medical electrical equipment, the United States, Japan, Germany, Taiwan, four places have occupied the top four, the birth force of mainland China and South Korea continue to race, CB issued nearly four times the amount of certificates jumped in five years.