The present research provides an investigation on anchoring effect (bias), about how high anchor and low anchor may affect the estimation differently in the anchoring bias, also with research and data analysis on the affection of gender, had previous knowledge before or not, and the educational level of the participants on their estimation under the anchoring bias. Participants are Chinese who have WeChat installed on their phones. Online questionnaires were separated from the participants, which were then collected as the resource of the result of this research. Together, this research demonstrates that in anchoring bias, a high anchor has a larger influence comparing to low anchor. Anchoring bias is also proven to be independently affecting people's decisions, not easily influenced by other influencing factors by the present research. Future directions are also given that can be done based on the present research.