The purposes of this research were 1) to study the personal factors of students buying ready made frozen food products 2) to study the knowledge in buying ready made frozen food products of students 3) to study students buying behavior of ready made frozen food products 4) to study the relationship between personal factors and buying behavior of ready made frozen food products and 5) to study the knowledge in buying ready made frozen food products and buying behavior of ready made frozen food products. The sample was 300 students of the Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon. The research instrument was questionnaire. The statistics used to analyze the data were frequency percentage mean standard deviation and Pearson chi-square. The data analyzed by SPSS. The research found that 1) most of students were female age range in 20-21 years studying at 3rd year income of 7001 Baths and live with families. 2)the most students knowledge buying ready made frozen food products moderately level 3) most students bought ready made frozen food products in from 7-Eleven store buying 3-4 times per week fried rice and side dish for lunch cost of buying was 51 Bahts time range of buying was 12.01-18.00 minutes the reason to buy was because it was fast and the influence decision was oneself. 4) relationship between personal factors and buying behavior of ready made frozen food products found that age year of study average monthly income and shelters except sex at 0.05 significance level. 5) knowledge buying ready made frozen food products and buying behavior ready made frozen food products found that no relationship at the 0.05 significance level.