香港的人寿保险

恐怕不行，有要求的The insurance company must have an office or branch in Singapore if your policies are taken on or after 10 August 1973.

我买的是香港AIA新加坡也有AIA，那还算吗？

可能算说的是这个公司需要在新加坡有分部。
你没交CPF吗？交了超过5000的话claim不到insurance relief的。

To claim this relief for the Year of Assessment (YA) 2020, you must satisfy all these conditions:

Your total compulsory employee CPF contribution, self-employed Medisave/Voluntary CPF contribution and voluntary cash contribution to your Medisave account in 2019 was less than $5,000;
You paid insurance premiums in 2019 on your own life insurance policy; and
The insurance company must have an office or branch in Singapore if your policies are taken on or after 10 August 1973.

不能算，AIA Singapore是本地注册的公司不是office or branch in Singapore。