Test method of copper gate solar cell

The invention discloses a method for testing a copper gate solar cell, which comprises the following steps of: clamping a cell to be tested by using a conventional NBB solar cell test probe row tool, performing an irradiation test under a simulated standard sun condition, and extracting I-V electrical data of the solar cell; setting a test quantity constant C, and when the number of the continuously tested copper grid batteries reaches the set test quantity constant C, verifying the test stability by using a group of monitoring battery pieces with calibration data; if the deviation between the monitored battery piece verification value and the original calibration value is larger than the control test error requirement, alarm information is fed back, a probe tin adhesion cleaning link is executed, and after completion, mass production test is continued, and the test quantity count is reset; and if the deviation between the verification value of the monitored battery piece and the original calibration value is