Algorithmic trust is a kind of technical trusts,which belongs to the traditional trust relationship between people and technology.The join force from algorithm,data and intelligence promotes the technological trust to an unprecedented level.In case that data is regarded as a new type of productive factors,algorithm,one of the core driving forces of data,has led to algorithmic risks that pose a challenge to algorithmic trust due to such technical uncertainties as opacity,bias,etc.Therefore,it is necessary to find a way out from analyzing the causes of algorithmic trust and the risks involved.The effective algorithmic trust is supposed to be the combination between algorithm's own technical robustness and human rationality.