The present invention provides a silica fine particle capable of preventing a charging member or an image bearing member from being contaminated with toner when the toner contains the particle and also capable of providing the toner with a stable developing property. The silica fine particle of the present invention has been hydrophobic treated. Furthermore, the particle has a peak in a range of 0.04 m to 1 m and a peak in the range of 1 m to 100 m in a volume-basis particle diameter distribution. The particle has a frequency ratio of 10 to 80% for the particles with a particle diameter of 0.04 m to 1 m to a total of all the peaks, and the particles has the frequency ratio of less than 16% for the particles with a particle diameters of 20 m to 2000 m to the total of all the peaks.