The present invention relates to a method and apparatus for preventing excessive dilution of engine oil using a vehicle driving pattern analysis method. The method for preventing excessive dilution of engine oil using the vehicle driving pattern analysis method according to the present invention includes: calculating a weight factor according to the vehicle driving pattern (S10); Setting an excessive oil dilution region in the table of weight factors (S20); Determining whether the sum (K) of the weight elements in the excessive oil dilution region is equal to or greater than a predetermined first reference value (S30); Determining whether the amount of soot discharged from the vehicle is greater than or equal to a second preset reference value when the sum (K) of the weight elements in the excessive oil dilution region is greater than or equal to a preset first reference value (S40); And regenerating the DPF when the amount of soot (SOOT amount) accumulated in the DPF is greater than or equal to a preset second reference value (S50). According to the present invention, by analyzing the driving pattern of the vehicle, it is possible to obtain numerical data of the engine driving state according to the driving pattern for each driver. In addition, by using this, it is possible to improve the control stability of the DPF and prevent damage to the engine.
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