diff --git a/README.md b/README.md
index d05d02c..096228c 100644
--- a/README.md
+++ b/README.md
@@ -220,6 +220,8 @@ first run of `GoFmt` may fail. It is recommended to run `GoInstallBinaries` to i
 | GoGet {package_url}                           | go get package_url and restart gopls. Note1                              |
 | GoVet                                         | go vet                                                                   |
 | GoCoverage                                    | go test -coverprofile                                                    |
+| GoCoverage -f coverage_file_name              | load coverage file                                                       |
+| GoCoverage {flags}                            | -t : toggle, -r: remove signs, -R remove sings from all files          |
 | GoTermClose                                   | `closes the floating term`                                               |
 
 Note1: if package_url not provided, will check current line is a valid package url or not, if it is valid, will
diff --git a/doc/go.txt b/doc/go.txt
index eaa1429..c1bdade 100644
--- a/doc/go.txt
+++ b/doc/go.txt
@@ -150,9 +150,11 @@ COMMANDS                                                     *go-nvim-commands*
 
         [flags] are passed to the `go test` command; there are two special
         flags:
+        -t coveragefile  load coverage data from coveragefile
 
-        remove       Remove all existing highlighting.
-        toggle       Toggle display of highlighting.
+        -r       Remove existing highlighting in current buffer.
+        -R       Remove all existing highlighting.
+        -t       Toggle display of highlighting.
 
                                  *hl-goCoverageCovered* *hl-goCoverageUncover*
 
diff --git a/lua/go/coverage.lua b/lua/go/coverage.lua
index 78c0774..ecab413 100644
--- a/lua/go/coverage.lua
+++ b/lua/go/coverage.lua
@@ -224,6 +224,26 @@ M.run = function(...)
   local args = { ... }
   log(args)
 
+  local load = select(1, ...)
+  if load == "-f" then
+    local covfn = select(2, ...)
+    if covfn == nil then
+      vim.notify("no cov file specified", vim.lsp.log_levels.WARN)
+      return
+    end
+    return M.read_cov(covfn)
+  end
+  if load == "-t" then
+    return M.toggle()
+  end
+
+  if load == "-r" then
+    return M.remove()
+  end
+
+  if load == "-R" then
+    return M.remove_all()
+  end
   local test_runner = "go"
   if _GO_NVIM_CFG.test_runner ~= "go" then
     test_runner = _GO_NVIM_CFG.test_runner
@@ -266,7 +286,7 @@ M.run = function(...)
 
   vfn.jobstart(cmd, {
     on_stdout = function(jobid, data, event)
-      log("go coverage " .. vim.inspect(data),  jobid, event)
+      log("go coverage " .. vim.inspect(data), jobid, event)
       vim.list_extend(lines, data)
     end,
     on_stderr = function(job_id, data, event)
diff --git a/lua/go/gotest.lua b/lua/go/gotest.lua
index 8e5bf24..14a97bb 100644
--- a/lua/go/gotest.lua
+++ b/lua/go/gotest.lua
@@ -10,6 +10,7 @@ local vfn = vim.fn
 local long_opts = {
   verbose = "v",
   compile = "c",
+  coverage = "C",
   tags = "t",
   bench = "b",
   select = "s",
@@ -17,7 +18,7 @@ local long_opts = {
 }
 
 local sep = require("go.utils").sep()
-local short_opts = "vct:bsF"
+local short_opts = "vcC:t:bsF"
 local bench_opts = { "-benchmem", "-cpuprofile", "profile.out" }
 
 M.efm = function()
@@ -130,6 +131,11 @@ local function run_test(path, args)
   if not empty(tags) then
     cmd = vim.list_extend(cmd, {tags})
   end
+
+  if optarg["C"] then
+    table.insert(cmd, "-coverprofile=" .. optarg["C"])
+  end
+
   if not empty(reminder) then
     cmd = vim.list_extend(cmd, reminder)
   end
@@ -175,6 +181,7 @@ M.test = function(...)
   local test_opts = {
     verbose = "v",
     compile = "c",
+    coverage = "C",
     tags = "t",
     bench = "b",
     floaterm = "F",
@@ -183,7 +190,7 @@ M.test = function(...)
     package = "p",
   }
 
-  local test_short_opts = "vct:bsfnpF"
+  local test_short_opts = "vcC:t:bsfnpF"
   local optarg, _, reminder = getopt.get_opts(args, test_short_opts, test_opts)
 
   vfn.setqflist({})