diff --git a/components/sensor/b_parasite.rst b/components/sensor/b_parasite.rst
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@@ -0,0 +1,63 @@
+b-parasite
+==========
+
+.. seo::
+    :description: Instructions for setting up the b-parasite soil moisture sensor in ESPHome.
+    :image: b_parasite.jpg
+    :keywords: b-parasite, parasite, BLE, Bluetooth, soil moisture
+
+
+`b-parasite <https://github.com/rbaron/b-parasite>`__ is an open source soil moisture and ambient temperature/humidity sensor.
+
+The ``b_parasite`` sensor platform tracks b-parasite's Bluetooth Low Energy (BLE) advertisement packets. These packets contains soil moisture, air temperature/humidity and baterry voltage data.
+
+.. figure:: images/b_parasite.jpg
+    :align: center
+    :width: 80.0%
+
+.. code-block:: yaml
+
+    # Example configuration.
+
+    # Required.
+    esp32_ble_tracker:
+
+    sensor:
+      - platform: b_parasite
+        mac_address: F0:CA:F0:CA:01:01
+        humidity:
+          name: 'b-parasite Air Humidity'
+        temperature:
+          name: 'b-parasite Air Temperature'
+        moisture:
+          name: 'b-parasite Soil Moisture'
+        battery_voltage:
+          name: 'b-parasite Battery Voltage'
+
+Configuration variables
+-----------------------
+
+- **mac_address** (**Required**): The MAC address of the device.
+- **temperature** (*Optional*): Air temperature in Celcius.
+
+  - **name** (**Required**): Sensor name.
+  - All other options from :ref:`Sensor <config-sensor>`.
+- **humidity** (*Optional*): Relative air humidity in %.
+
+  - **name** (**Required**): Sensor name.
+  - All other options from :ref:`Sensor <config-sensor>`.
+- **moisture** (*Optional*): Soil moisture in %.
+
+  - **name** (**Required**): Sensor name.
+  - All other options from :ref:`Sensor <config-sensor>`.
+- **battery_voltage** (*Optional*): Battery voltage in volts.
+
+  - **name** (**Required**): Sensor name.
+  - All other options from :ref:`Sensor <config-sensor>`.
+
+See Also
+--------
+
+- `b-parasite on GitHub <https://github.com/rbaron/b-parasite>`__
+- :doc:`/components/esp32_ble_tracker`
+- :ghedit:`Edit`
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diff --git a/index.rst b/index.rst
index 27eb9c151..f734e6e96 100644
--- a/index.rst
+++ b/index.rst
@@ -109,6 +109,7 @@ Sensor Components
     BME680 via BSEC, components/sensor/bme680_bsec, bme680.jpg
     BMP085, components/sensor/bmp085, bmp180.jpg
     BMP280, components/sensor/bmp280, bmp280.jpg
+    b-parasite, components/sensor/b_parasite, b_parasite.jpg
     CCS811, components/sensor/ccs811, ccs811.jpg
     CSE7766, components/sensor/cse7766, cse7766.svg
     CT Clamp, components/sensor/ct_clamp, ct_clamp.jpg