Yu yongjin, the owner of the thatched cottage, was born in zibo, shandong province. He was born in 1967 and graduated from the first advanced seminar of chinese painting of china artists association. Member of china artists association, deputy curator of qilu art museum of china artists association, senior painter of shandong painting academy, vice chairman of zibo youth artists association. The works have participated in various exhibitions sponsored by national important art institutions for many times, published a variety of personal painting collections, edited various grand ceremonies and scattered in various art publications. The 1999 work "thousands of kinds of frost and the sky unexpectedly free" was incorporated into the creative painting collection of mao zedong's poems (sponsored by china association of fine arts and heilongjiang association of fine arts). In june 2004, he participated in the western collection activities organized by china association of fine arts, and he was invited to attend the opening ceremony of chen zizhuang art museum, whose works were collected and exhibited by chen zizhuang art museum (sponsored by chongqing yongchuan municipal people's government). In august 2004, the chinese artists association qilu art museum opened and the chinese artists association qilu creation center was established. It was appointed as the executive deputy curator of the chinese artists association qilu art museum and the deputy director of the chinese artists association qilu creation center. Participated in the first chinese fine painting exhibition of chinese artists association members sponsored by china artists association, and served as a member of the organizing committee and the editorial committee of the painting collection. In june, 2005, the work "two screens of flowers and birds" participated in the fidelity auction of contemporary famous paintings and calligraphy held by beijing zhongzhao international auction company, with a base price of 2,000 yuan and a high price of 8,000 yuan. In august, 2005, he was invited to participate in the founding activities of xiamen creation center, hunan creation center and jiangxi creation center of china association for fine arts. He co-authored and sketched with dozens of famous painters from all over the country. His works were written by xiamen, hunan, collection by jiangxi creation center. In may, 2006, quick-writing works were included in the compilation to commemorate the 64th anniversary of chairman mao zedong's speech at yan'an forum on literature and art, "review speech, walk into life sketch works of artists in shandong province", and were invited to participate in the launching and seminar activities of the album. In 2006, I went to tianshui, gansu province to participate in the collection and sketching activities organized by the chinese association of fine arts, and participated in the work conference of the creation center of the chinese association of fine arts in 2006. The works were collected by jinlong hotel, tianshui, gansu province, and were added to the chinese artists association in december. In june, 2007, the works "orchid bamboo", "chrysanthemum yellow flowers" and "deep shade and secluded birds" were respectively compiled into the new flower and bird painting spectrum published and issued by hebei fine arts publishing house, from the book "bamboo spectrum", chrysanthemum spectrum, bird spectrum. In august, 2007, the work "deep shade birds" was sold for 12000 yuan in the auction of contemporary famous artists held by beijing rongbao auction company. In october, 2007, the work "the beauty of the country" was written into the collection of works to commemorate the 10th anniversary of the reconstruction of doushan temple. In october 2008, the works were selected into the "shandong chinese painting hundred" co-sponsored and edited and published by art newspaper and shandong artists association. In october 2008, the works were selected into the "shandong chinese painting hundred" co-sponsored and edited and published by art newspaper and shandong artists association.