The construction of the domestic electricity retail market starts relatively later than that of many developed countries. The retail electricity prices and package plans are still immature and need to be further improved. Japan, Singapore and China have similar systems of electricity retail market, and have achieved certain achievements in the construction of the above aspects, which provides a reference for the construction of electricity retail market in China. The reform history of the electricity retail market in Japan and Singapore is sorted out, and the changes and current situations of the retail electricity prices and packages for the two countries are compared and analyzed after the retail market is fully liberalized. Futhermore, combined with the actual situation of well-established retail market in Yunnan, aspects of the market reforms, retail packages, retail electricity prices, retailers and online businesses in the construction of retail markets in Japan and Singapore are analyzed. Suggestions such as gradually liberalizing the retail market, launching joint packages, and constructing network platform are put forward in order to provide reference for the improvement and development of electricity retail market in China.