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This study aims to analyze the needs of developing a virtual laboratory based on problem solving which will then be used as a platform for the development of virtual laboratories. The type of research that will be carried out is qualitative descriptive analysis. Data collection techniques were carried out by distributing questionnaires to high school students majoring in science who had received ecosystem material on biology subjects and interviewed biology teachers. The acquisition of student and teacher answers is summed and averaged, converted into percentage forms and then analyzed and drawn conclusions. The results showed that 83% said that the biogeochemical cycle sub-material was difficult and very difficult to learn on ecosystem material, as much as 77% said that biology preferred practicum rather than just theory and as many as 43% of students said the time spent in practicum very limited in school. And as many as 88% of students agree if there is computer-based learning for laboratory experiments. For the analysis of the problems in the material obtained from the results of 100% questionnaire teacher respondents stated that the difficult thing to teach students is the sub-material biogeochemical cycle ecosystem and from the 6 teachers all expressed the need for media or teaching aids to help teachers in learning sub-material biogeochemical cycle, especially in practicum. From these results, the practicum is very necessary in learning biology, but the facilities and infrastructure are inadequate and the safety and time factors are also the main obstacles in practicing, so this requires a computer-based teaching aid to be developed in this case in the form of a virtual laboratory.