Background: With the changes in the education system all throughout the world brought by the pandemic, this study aims to identify the level of readiness of high school science teachers in teaching biology amidst the Covid19 Pandemic and determine how the science teachers could increase their preparedness in teaching during this critical times. Objectives: The objective of this research is to know the level of readiness of High School Teachers in Teaching Biology amidst the pandemic and suggest on how they could improve their preparedness during critical times. Methods: This research utilized a Quantitative method using a structured interview form administered through Google Forms. This form was divided into three parts, agreement, personal information and checklist proper. This study utilized both descriptive and inferential statistics in treating the data collected. Results: The respondents perceived that they are confidently ready to teach Science 9 biology amidst the pandemic. The respondents’ mean score from all the parameters for readiness in on line teaching amidst the pandemic is 3.87 which indicate that they are ready for the alternative way of teaching. Conclusions: Online learning or virtual learning has gained popularity in science education. Teachers should be aware of their readiness in on line teaching and to develop their skills in order to help the learners to be developed academically even when faced in critical or challenging circumstances.