Àííîòàöèÿ.  íàñòîÿùåé ðàáîòå ïðåäñòàâëåí ìåòîä íàáëþäåíèÿ ïîëîñ ðîñòà êðèñòàëëîâ InP, ëåãèðîâàííûõ ñåðîé, çàêëþ÷àþùèéñÿ â ýëåêòðîõèìè÷åñêîì òðàâëåíèè îáðàçöîâ.  ðå-çóëüòàòå íà ïîâåðõíîñòè èññëåäóåìûõ êðèñòàëëîâ îáðàçóåòñÿ êàðòèíà êîíöåíòðè÷åñêèõ òåì-íûõ êîëåö øèðèíîé ïîðÿäêà 100 ìêì, êîòîðûå ïðåäñòàâëÿþò ñîáîé ìåñòà íàèáîëåå ïëîòíî-ãî ñêîïëåíèÿ ïîð. Ïîðû ïðîðàñòàþò â òåõ îáëàñòÿõ, ãäå êîíöåíòðàöèÿ ñåðû ìàêñèìàëüíà. Ýòî ñâèäåòåëüñòâóåò â ïîëüçó âûáðàííîãî ìåòîäà äëÿ íàáëþäåíèÿ ñåãðåãàöèîííûõ ÿâëåíèé â êðèñòàëëå, êîòîðûå ïðîÿâëÿþòñÿ â âèäå ïîëîñ ðîñòà. Abstract. In this work the method of observation of InP crystals growth bands is presented. This method deals with electrochemical etching of samples. As a results the surface of concentric dark circles of 100 mkm width was appear on the surface of investigated crystals. Pores appeared in the fields with the highest concentration of sulfur. It proves the suitability of chosen method for observation of segration in crystals.