Which bus should I take from Baiyun Airport to Haizhu Square near Beijing lu at time midnight time?

You can take shuttle bus line 1 and get off at Airport Express Air-Ticket Office station. Then take taxi to your destination.

I just see shutter bus line 5 go to Hilbin hotel until lastflight time ? It’s possible take this bus on 23.00 pm. Sorry I am a little confused.

There is no shuttle bus line 5 from the official website I search.

Shuttle Bus Line 5: Airport - Hilbin Hotel (former Globelink Hotel)
Airport → Hilbin Hotel
Hilbin Hotel → Airport
06:30 – last flight
05:00 – 21:00
Frequency: 25 - 35 minutes; Duration: 50 minutes
Stops & Ticket Fare:
Baiyun Airport → Suijing Building, CNY 14→ Baima Wholesale Market, CNY 18 →Dongfang Hotel, CNY 17 → Haizhu Plaza, CNY 21→ Hilbin Hotel, CNY 21
Hilbin Hotel → Haizhu Plaza → China Grand Hotel → Baima Wholesale Market→ Baiyun Airport; CNY 21

Shuttle Bus Line 5: Airport - Hilbin Hotel (former Globelink Hotel)
Airport → Hilbin Hotel
Hilbin Hotel → Airport
06:30 – last flight
05:00 – 21:00
Frequency: 25 - 35 minutes; Duration: 50 minutes
Stops & Ticket Fare:
Baiyun Airport → Suijing Building, CNY 14→ Baima Wholesale Market, CNY 18 →Dongfang Hotel, CNY 17 → Haizhu Plaza, CNY 21→ Hilbin Hotel, CNY 21
Hilbin Hotel → Haizhu Plaza → China Grand Hotel → Baima Wholesale Market→ Baiyun Airport; CNY 21