The author has been engaged in titanium investment for more than seven years,and has collected and studied nearly 100 geological exploration reports and reserve verification reports of weathered titanium placer,most of which are wrong in resource / reserve estimation to varying degrees.This paper makes a detailed analysis on the problems existing in The verification report of Panjiang ilmenite resources and reserves in Jianshui County,Yunnan Province,hoping to be helpful to the preparation of the same type of report and attract the attention of people engaged in mining investment.