The utility model provides an automatic heavy current stabilization control system for a switchgear test. According to the system, a contact voltage regulator, a heavy current transformer, a transmitter and a high anti-interference electronic circuit form a loop-locked automatic regulation system for automatically tracking set test current, so that automatic stabilization of heavy current for a temperature rise test is achieved, a main performance index of the system complies with the relevant national standard, and a requirement of the temperature rise test is met; the automatic current stabilization system for the temperature rise test achieves the automatic stabilization of the test current, and is convenient to use, simple to operate and complete in function; the labor intensity of test personnel is reduced; the working efficiency is improved; and a negative effect of a human factor on a test result can be limited effectively.