Hi,
You can specify the rule number.
For example, for the configuration below,
#
acl number 2000
rule 10 permit source 10.x.x.1 0
rule 15 permit source 20.x.x.1 0
#
If you want to insert a rule between rule 10 and rule 15, you can refer the example below:
[Huawei] acl 2000
[Huawei-acl-basic-2000] rule 11 permit source 30.x.x.1 0
#
acl number 2000
rule 10 permit source 10.x.x.1 0
rule 11 permit source 30.x.x.1 0
rule 15 permit source 20.x.x.1 0
#