Abstract: Usually,110 kV cross-linked cable degassing time is 7 days when the temperature is 70 ℃ . In this paper,110 kV cross-linked cable conductors with nitrogen were degassed for 6 days,5 days and the conductors without nitrogen were degassed for 7 days,and the contents of by-products such as methane,acetophenone and alcohol were detected. Through the comparative analysis of the test data,it is concluded that the conductor can be filled with nitrogen to shorten the degassing time by 1-2 days.