A script debugging method, a device, and a computer storage medium. The method includes: obtaining, by a device, a debugging instruction, where the debugging instruction carries a to-be-debugged target line breakpoint, and the target line breakpoint includes at least line information used to indicate a line of code in which a breakpoint location is located in a script file requested to be debugged; and displaying a debugging result when determining that a breakpoint debugging condition is met, where the debugging result includes information obtained by the debugger when the device performs breakpoint processing on the line of code corresponding to the target line breakpoint, and the breakpoint debugging condition includes at least that identification information corresponding to a target interface breakpoint is consistent with identification information corresponding to a target local variable.