Objective To find out the situation of non-rewarded blood donation in the Hong Kong Garrison,and lfficers and men′s knowledge and will on non-rewarded blood donation.Thus,we can provide science bais for improving and optimaling military non-rwarded blood donation.Methods Give questionnaire in 1 610 donators in Hong Kong Garrison.The questionnaires includes basic condition of donators,motive of donation.The investigation discovered that,in aspect of offering love,there were more people who have donated several times than these who have once.In the aspect of considering health problems,non-donators are much more serious than donators.Results The age of blood donations in Hong Kong Garrison mainly ranges form 18 to 35,which ac-counts for 87.6% of the whole donators,offering love was the main reason for serviceman donating blood,among which people who donated once and several times accounts for 54.1% and 67.3% respectively,Military publicity was the main channel of learning blood donation knowledge.People who were willing to keep on donating blood account for 98.1%.Conclusion We should make targeted efforts on publicity,keep on improving blood taking safty measures,construct a well blood taking atmosphere,and show more humanistic concern and communication.So as to build a certain non-remunerated blood donating team and promote a sustained and healthy development of blood donation.