Abstract The aimed of this research was to collection of local rice seeds, seed conservation and investigates area of local rice crop in Nai Muang and Sai Ngam district, Kamphaeng Phet province. The data was performed by surveying and collection of local rice seeds. The unstructured interview and in-depth interview with farmer’s plant local rice from Muang and Sai Ngam Districts for rice conservation. Quantity data was analyzed by content analysis and descriptive analysis methods. The local rice crop was used Global Positioning System (GPS) coordination and areas of local rice crop were carried on using Geographic Information System (GIS). The results found that Nai Muang district contained 10 local rice cultivates, Khao′ Jao Hawm Dawk Mali Daeng, Khao′ Jao Khao Gaw Diaw 35, Khao′ Jao Khao Tah-kleuap, Khao′ Jao Leuang Pratan, Khao′ Jao Soh Maa Lee, Khao′ Jao Hawm Su-rin, Khao′ Jao Hawm Nil, Khao′ Niew San-pah-tawng, Khao′ Niew Leuang Noi and Khao′ Niew Dam, respectively. Three local rice cultivates were found in Sai Ngam district, Khao′ Jao Hawm Dawk Mali Daeng, Khao′ Jao Hawm Nil and Khao′ Niew Dam, respectively. The GIS data indicated that Nai Muang district had areas of rice planting more than Sai Ngam district. The principle of sufficiency economy was used by the farmers Nai Muang district for rice planting, the rice production for family consumption, selling and their activities, while Sai Ngam district rice planting for family consumption and selling. In addition, Local rice conservation, farmers cropped rice in agricultural plot and gave rice seed to theirs members and kept rice seed in zip-lock plastic bag or packed in the small cloth bag to protect against insect and animal before planting in every year.