In our opinion, it is doubtful that any algorithmic stablecoins, relying solely on the increase or decrease in quantity and price controlled by the algorithm, can maintain a stable price at the initial stage without the support of actual collateral. For example, it is impossible for the sovereign credit currency to keep stable if there is no tangible or intangible assets owned by the country to support its value. In addition, we can also fully understand the disadvantages of non-collateralized algorithms by observing the actual conditions of AmpleForth, BasisCash and other non-collateralized algorithmic stablecoins.