Among those punished, 42 were party chiefs and court presidents, while eight were discipline inspection officials accredited to the courts, the SPC said in a statement.
They were either critiqued by the authorities or given sanctions, such as a demerit mark on their records, or dismissed, it said, state-run Xinhua news agency reported.
The Communist Party of China (CPC) refers to probes on corruption and abuse of power as disciplinary proceedings.
The SPC has made public cases involving 13 court presidents who were held accountable since the 18th National Congress of the CPC in late 2012, the statement said.