With the characters of high stability, good flexibility and power quality, DC distribition network becomes the development tendency in the future. DC current breaker plays an important role in the stability and safety of DC distribution network as a protection device. A solid hybrid DC circuit breaker scheme for DC distribution network is proposed in this article. The breaker is made up of three branches: the main current branch consisting of thyristors and a modular IGBT in series, the transfer branch consisting of stakpak IGBTs, the absorption branch consisting of arresters. Simulations of the DC breaker are carried out, and a prototype of the breaker and a testing platform are built. The prototype cuts off 2 kA and 5 kA DC currents under the voltages of 10 kV and 7.5 kV respectively. The efficiency of the prototype is higher than 99.94%.