Thnak you for the quick reply, follow your comments.
serial NOR flash have been mounte on the PCBA, and below is my setting:
1. internal boot mode,(0010)
2. BT_fuse_SEL=0 in fuse

3. The detail info of Boot_CFG pin is below PIC.(Due to the board can not power on. I have tried to change the"BT_CFG[1]" to High and enbale the XIP. At last, the board still can not power on .)

Till now, my board is ok in "Dev usigned image boot "mode, and fail in "encrypted imaged boot" mode.
the boot CFG seeting if related this case?