Bank guarantee is one of the modem banking was born a long time ago and is the commercial banking applications developed over the years. However, to date the type of guarantee is monotonous, risks and the development of the service guarantee has not met the requirements of the economy. So in the future, to develop service guarantee banks some concern following solutions: continue to consolidate the prestige and reputation of the banks; improving training quality professional training associated with trading style and code of conduct with clients; Improve processes and procedures guarantee; complete customer policy towards meeting the requirements of the customer, simple procedures clear and transparent while ensuring safe operation of the bank; Develop appropriate tariff for each period; Diversification of the product guarantee and develop some new types of guarantees; mitigate risks and support solution used.