Please go to the link Do I need a visa to visit Russia? to understand if you need a visa for your travel to Russia.
Visa-Free access for HK SAR and Macau SAR passport holders:
According to the bilateral intergovernmental agreements, holders of the HK SAR and Macau SAR passports enjoy visa-free entry to the Russian Federation.
Duration of the visa-free stay in the Russian Federation for the HK SAR passport holders: 14 calendar days, starting from the day of crossing the border of Russia.
Duration of the visa-free stay in the Russian Federation for the Macau SAR passport holders: 30 calendar days, starting from the day of crossing the border of Russia.
Non-permanent residents of the HKSAR and Macau SAR (holding HKSAR SAR Document of Identity for Visa Purposes or Macau Travel Permit) should apply for a Russian visa.
Before applying for a visa to Russia, applicants should decide the visa subclass under which they wish to lodge their visa application.
Please be advised that the actual purpose of your travel to Russia must correspond with the type of visa you are applying for. Failing to observe this rule will lead to rejection of your visa application, rejection to enter or deportation from Russia.
VFS Global employees can provide you with information and application forms for Russian visas, but they are not able to provide you with advice regarding which visa you should apply for.
If the purpose of your travel is: