Small cell plays an important role of 4G mobile communication system for data rate and coverage. Radio conformance testing (RCT) of small cell, which is used to verify the quality and interoperability of products, is specified in 3GPP standard. RCT is not only used to verify the technology maturity and integrity, but also a basic requirement to market. This paper introduces a radio conformance testbed for LTE/LTE-A small cell, which provides test service of 3GPP RCT for industry.