Agriculture still remains a little attractive to most of investors. Modern investment into agrarian sector of Kazakhstan and growth of its investment appeal restrains an acute shortage of financial resources, poorly developed material base, low solvent demand of the population therefore growth of investments is one of major factors of ensuring economic development of agriculture in general, improvement of quality of life of the population of the village, updating of regional technical and technological base, fixed assets in agriculture. In this regard special relevance researches on improvement of mechanisms of attraction of investments into agrarian sector of economy and methods of increase of investment appeal of agriculture for the purpose of ensuring its sustainable economic development. If to consider already created interstate unions, in this plan it is expedient to consider relationship between Romania and Kazakhstan. Kazakhstan and Romania will develop in common electronic decisions in education, medicine and agriculture. In Kazakhstan communications with inclusion of the earth in market the turn appears need for new financial instruments as mortgage valuable issue papers (bonds). The proposed Мodel of land - mortgage lending will be the main way to increase the investment attractiveness Republic of Kazakhstan.